_______ involves extending big, broad rows of crops across the slope of a hill, and _____ involves dividing a steep hill into small sections of flat fields.

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Answer 1

Contour farming involves extending big, broad rows of crops across the slope of a hill, and terrace farming involves dividing a steep hill into small sections of flat fields.

The farming technique of ploughing and/or planting over a slope while adhering to its elevation contour lines is known as contour bunding, contour farming, or contour ploughing. On slopes that have gradients between 2% and 10%, contour farming is effective. Second, the region must see a specific amount of rainfall over a specific time period. The goal of contour farming is to decrease soil erosion and increase agricultural yields by planting crops following the contour lines of a field. Although it would need more labour and equipment and might not work with all crops or soil types.

A terrace in agriculture is a sloped plot of land that has been divided into a succession of progressively smaller flat surfaces or platforms that resemble steps for better farming efficiency. Terracing is the term used to describe this style of landscaping. Terraces significantly reduce soil erosion by lowering the quantity and speed of water travelling across the soil surface.

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Related Questions

Which term best describes an accumulation of angular rock fragments at the base of a steep, bedrock slope or cliff

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Answer:  talus slope

Explanation:

Overall, is globalization a positive or negative idea for the world? Support your answer by explaining why globalization exists, provide two examples of globalization, and describe the main effects of globalization on the world.

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Since globalization has raised living standards throughout many nations, it has been beneficial.

For certain nations, globalization has facilitated economic expansion, the eradication of poverty, and overall progress. According to estimates, the number of individuals in the developing countries who live in extreme poverty has decreased. In emerging countries, positions for unskilled labor have also been created, allowing for their professional advancement.

On the other side, globalization has had unfavorable effects, including, but not limited to, greater global inequality, increased corruption, job losses, and environmental destruction. Countries can undertake a number of policies to cope with the negative effects of globalization, including, but not limited to, investing in new technology, putting anti-corruption measures in place, and putting human rights protections in place.

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_______ involves extending big, broad rows of crops across the slope of a hill, and _____ involves dividing a steep hill into small sections of flat fields.

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Contour farming involves extending big, broad rows of crops across the slope of a hill, and Terrace farming involves dividing a steep hill into small sections of flat fields.

Contour farming is a type of agricultural technique that involves planting crops along the natural curves of a hill or slope. By planting crops along these curves, it helps to reduce soil erosion, as the crops help to hold the soil in place. This technique also helps to conserve water, as it allows water to slowly seep into the soil rather than running off the hillside.

Terrace farming involves dividing a steep hill into small sections of flat fields. This technique is often used in areas where there is limited flat land for agriculture. The hillside is cut into steps or terraces, and crops are planted on each terrace. This technique also helps to reduce soil erosion, as it helps to prevent water from washing away the soil. Terrace farming has been used for thousands of years and is still commonly used today in many parts of the world.

In summary, contour farming involves extending big, broad rows of crops across the slope of a hill, while terrace farming involves dividing a steep hill into small sections of flat fields. Both techniques are effective in reducing soil erosion and conserving water, and they have been used for centuries to improve agricultural practices.

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Jet streams: Group of answer choices do not go below 50 degrees latitude. were first detected by George Hadley. reverse direction 180 degrees in summer. occur near the tropopause.

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Jet streams can be found near the tropopause. Here option D is the correct answer.

Jet streams are fast, narrow currents of air that flow in the upper atmosphere, typically at altitudes ranging from 20,000 to 50,000 feet. They are formed due to the temperature differences between the polar and tropical regions of the Earth, which create large pressure gradients. The polar jet stream is the most well-known and flows from west to east, circling the planet in a narrow band near the polar regions.

Jet streams occur near the tropopause, the boundary layer between the troposphere (the lowest layer of the atmosphere) and the stratosphere. The temperature gradient across the tropopause creates a strong wind shear, which drives the formation of the jet stream.

Contrary to option C, jet streams do not reverse direction by 180 degrees in summer. However, they can vary in location and intensity throughout the year. Jet streams are most prevalent in the winter when the temperature differences between the polar and tropical regions are at their greatest. In summer, the jet streams tend to be weaker and shift towards higher latitudes.

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Complete question:

Jet streams: Group of answer choices

A - do not go below 50 degrees latitude.

B - were first detected by George Hadley.

C - reverse direction 180 degrees in summer.

D - occur near the tropopause. - 150 word answer

A flow involving soil where much of the material is coarse grained (boulders and gravel) is known as a(n);

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A flow involving soil where much of the material is coarse-grained, such as boulders and gravel, is known as a debris flow.

Debris flows are a type of landslide that typically occur in steep, mountainous terrain and are triggered by heavy rainfall or rapid snowmelt. They can be extremely destructive, as they are capable of carrying large boulders and trees and can cause extensive damage to infrastructure and property.

Debris flows are difficult to predict and can be triggered by a variety of factors, making them a significant hazard in many parts of the world. Efforts to mitigate the risk of debris flows typically involve measures to stabilize slopes and reduce erosion, as well as early warning systems to alert people to the potential for hazardous conditions.

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All of the following would have a direct effect on the amount of precipitation in an area except Group of answer choices mountain ranges continental drift ocean currents evaporation from vegetatio

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All of the following would have a direct effect on the amount of precipitation in an area except evaporation from vegetation.

Through their effects on the climate and atmospheric circulation patterns, mountain ranges, continental drift, and ocean currents can all indirectly affect the amount of precipitation in a region.

They do not, however, directly affect how much precipitation falls in a given place.

Evaporation from aquatic bodies, the availability of moisture, and atmospheric circulation patterns all play major roles in determining the amount of precipitation in a given area.

Although it contributes to the water cycle, evaporation from vegetation has no direct impact on how much precipitation falls in a given area.

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Eustasy refers to Group of answer choices the amount of new water from outgassing volcanoes. a steady-state equilibrium in the water system. worldwide changes in sea level. changes in the total amount of water on Earth.

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Eustasy refers to worldwide changes in sea level, specifically the global change in sea level resulting from changes in the volume of water in the oceans or changes in the shape or capacity of the ocean basins.

The melting of glaciers and ice caps, variations in ocean temperature and salinity, and variations in the amount of water held in lakes, rivers, and groundwater on land are all contributors to eustatic sea level change.

Because it can significantly affect coastal regions in terms of flooding, erosion, and the distribution of marine organisms, eustasy is a key concept in geology and earth science.

When the eustatic sea level is high, for instance, low-lying areas near the coast may be inundated or permanently buried, whereas when the eustatic sea level is low, the exposed continental shelf may function as a land bridge that enables the movement of terrestrial animals across continents.

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Of the regions of the United States, which has the highest incidence of tornadoes? A) New England B) Hawaiian Islands C) West Coast D) Midwestern States Group of answer choices A B C D

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Of the regions of the United States, the Midwestern States have the highest incidence of tornadoes. This region is known as Tornado Alley. The correct answer is option D.

Tornado Alley is characterized by warm, moist air from the Gulf of Mexico colliding with cooler, drier air from the Rockies, creating ideal conditions for tornado formation. It includes parts of Texas, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota, Iowa, Missouri, Illinois, Indiana, and Ohio.

The peak season for tornadoes in Tornado Alley is from April to June, although tornadoes can occur throughout the year. Tornadoes in this region can be extremely destructive, with winds reaching speeds of up to 300 mph and causing damage to buildings, infrastructure, and agriculture.

While tornadoes can occur in other regions of the United States, such as the Southeast and the Great Plains, Tornado Alley experiences the highest incidence of tornadoes.

Despite advances in forecasting and warning systems, tornadoes continue to be a natural hazard that pose a threat to life and property in this region.

In summary, the Midwestern States have the highest incidence of tornadoes in the United States, and this region is known as Tornado Alley. Tornadoes in this region can be extremely destructive and pose a significant threat to life and property. The correct answer is option D

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In terms of reaching Earth's carrying capacity, developing countries exacerbate the problem due to their _____, while developed countries also aggravate the situation due to their _____.

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In terms of reaching Earth's carrying capacity, developing countries exacerbate the problem due to their rapidly growing populations, while developed countries also aggravate the situation due to their overconsumption and wasteful lifestyles.



Developing countries, especially those in Africa and Asia, are experiencing a population boom that is putting a strain on their resources and their environment.

The United Nations predicts that the global population will reach 9.7 billion by 2050, with the majority of the growth occurring in developing countries.

These countries often lack the infrastructure and resources to support their growing populations, which can lead to food and water shortages, deforestation, and environmental degradation.

On the other hand, developed countries have a relatively stable population, but they consume far more resources than developing countries.

Developed countries have high levels of consumption and waste, which can lead to depletion of natural resources, pollution, and climate change.

The average American, for example, uses 2.5 times more resources than the average person in a developing country.
In order to address these issues, both developing and developed countries need to take action.

Developing countries need to focus on sustainable development and invest in infrastructure and programs that will support their growing populations without further damaging the environment.

Developed countries, meanwhile, need to reduce their consumption and shift towards more sustainable lifestyles. This includes reducing waste, using renewable energy sources, and investing in public transportation.

Overall, the issue of reaching Earth's carrying capacity is a complex one that requires global cooperation and action. Both developing and developed countries have a role to play in addressing the issue and finding solutions that will ensure a sustainable future for all.

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Natural resources Group of answer choices are inputs provided by nature. include land, rivers, and mineral deposits. take two forms: renewable and nonrenewable. All of the above are correct.

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Natural resources are inputs provided by nature and include land, rivers, and mineral deposits. The correct option is inputs provided by nature and include land, rivers, and mineral deposits.

These resources can be categorized into two types: renewable and nonrenewable. Renewable resources are those that can be replenished naturally in a short period of time, such as wind and solar energy, whereas nonrenewable resources are those that cannot be replenished in our lifetime, such as fossil fuels like coal and oil.

The availability of natural resources is vital for the economy and the survival of human beings. However, the overuse and depletion of nonrenewable resources has led to concerns about their sustainability, as well as environmental degradation. Therefore, it is essential to adopt sustainable practices and utilize renewable resources as much as possible to ensure their availability for future generations.

In summary, natural resources are crucial inputs for various economic activities, and their sustainability is vital for the well-being of both humans and the environment. Understanding the different types of natural resources and their impact on the environment is crucial in adopting sustainable practices that ensure the continuity of these resources. The correct option is inputs provided by nature and include land, rivers, and mineral deposits.

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While you are watching the television weather report to prepare for your geology field trip tomorrow afternoon, the weather reporter predicts the development of nimbostratus clouds. What equipment should you bring in addition to your hand lens and hammer

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In addition to your hand lens and hammer, you should bring rain gear, such as a waterproof jacket and pants, waterproof boots, and an umbrella.

Nimbostratus clouds are thick, dark, and low-lying clouds that usually produce continuous, moderate to heavy rainfall. They often cover large areas and can lead to extended periods of rain. Since the weather reporter predicts the development of nimbostratus clouds, it is essential to prepare for wet and potentially muddy conditions during your geology field trip.

To ensure a comfortable and productive geology field trip despite the predicted nimbostratus clouds, make sure to bring rain gear like a waterproof jacket and pants, waterproof boots, and an umbrella along with your hand lens and hammer.

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Considering the fact that mineral and soil resources are essentially nonrenewable, finite resources, what are some methods that can be used to conserve these resources

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Mineral and soil resources are nonrenewable and finite resources that need to be conserved to ensure sustainable development. The following are some methods that can be used to conserve these resources:

1. Recycling: Recycling minerals and metals is an effective way to conserve mineral resources. It reduces the need to mine new minerals, which reduces environmental impacts such as soil erosion, land degradation, and water pollution.
2. Reusing: Reusing soil and mineral resources can conserve these resources. For example, reusing construction materials such as bricks, concrete, and steel can reduce the need for new materials.
3. Sustainable mining practices: Adopting sustainable mining practices can help conserve mineral resources. This includes minimizing waste, reducing water use, and using energy-efficient technologies.
4. Land-use planning: Proper land-use planning can help conserve soil resources. This includes avoiding soil degradation, preventing soil erosion, and promoting soil conservation practices such as crop rotation, terracing, and contour plowing.
5. Reforestation: Reforestation can help conserve soil resources by preventing erosion and maintaining soil quality. Trees also absorb carbon dioxide, which can help mitigate climate change.
Overall, conserving mineral and soil resources is essential for sustainable development. These methods can help ensure that these resources are used responsibly and efficiently, and that they are available for future generations.

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An increase in the concentration of greenhouse gases in the troposphere will lead to the reduction in heat radiated back to space in the form of

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An increase in the concentration of greenhouse gases in the troposphere, such as carbon dioxide, methane, and water vapor, will lead to a reduction in the heat radiated back to space in the form of infrared radiation.

This is due to the fact that these gases capture and absorb part of the infrared heat released by the Earth's surface and lower atmosphere, and then re-radiate some of it back towards the surface, causing warming. This is referred to as the greenhouse effect.

As the concentration of these gases in the atmosphere rises, more infrared radiation is trapped and re-radiated back to the surface, causing the Earth's surface and atmosphere to warm.

Changes in precipitation patterns, sea level rise, and alterations in plant and animal ranges can all have a substantial impact on world climate.

Scientists, governments, and the general public are all concerned about the effects of increased greenhouse gas emissions, and they are working hard to reduce and adapt to these changes.

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What material was the basis for most ancient Sumerian buildings? A) Wood B) Stone C) Concrete D) Sun-dried brick and more.

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The material that was the basis for most ancient Sumerian buildings is Sun-dried brick. So the correct answer is D.

Sumerians used sun-dried brick to construct their buildings because it was readily available and provided good insulation from the hot Mesopotamian climate. The bricks were made by mixing mud and straw and then drying them in the sun. The resulting bricks were strong enough to support the weight of a building but not as durable as stone or fired bricks. Because of this, many ancient Sumerian buildings have not survived to the present day, but some well-preserved examples can still be seen in the ruins of cities such as Ur and Uruk.

Sun-dried brick was not as durable as stone or concrete, but it was cheap and easy to make, which allowed the Sumerians to construct large buildings and cities. The bricks were used to build walls, houses, temples, and other structures. The Sumerians also used bitumen, a natural tar-like substance found in the region, to waterproof their buildings and make them more weather-resistant. The use of sun-dried brick was a defining feature of Sumerian architecture and can be seen in the ruins of ancient cities like Uruk, Ur, and Nippur.

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18.Explain how temperature, silica content, viscosity, and gas content determine the type of volcanic products (ex. lavas vs. pyroclastic material) produced during an eruption and, in turn, how they dictate the type of volcanic landforms created.

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Temperature, silica content, viscosity, and gas content are all factors that influence the type of volcanic products produced during an eruption.

Higher temperatures result in more fluid lava, while cooler temperatures result in more viscous lava that may produce pyroclastic materials. High silica content in magma increases viscosity, resulting in explosive eruptions that produce pyroclastic material. Lower silica content results in less viscous lava that flows easily, producing lavas. The gas content of magma also plays a role, as high gas content increases the explosivity of an eruption.

These factors determine the type of volcanic landforms created, with fluid lavas creating shield volcanoes and more viscous lavas producing stratovolcanoes. Pyroclastic material from explosive eruptions can result in cinder cones and calderas.

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True or False: most deserts on our planet are a result of descending air within the Hadley Cell circulation at about 30 degrees North and South latitude.

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Answer: True

Explanation:  Most deserts on our planet are a result of descending air within the Hadley Cell circulation at about 30 degrees North and South latitude.

Why, during the summer in coastal areas (especially in the southeastern US and the Gulf of Mexico), do thunderstorms develop over land in the day and over the ocean at night

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During the summer in coastal areas like the southeastern US and the Gulf of Mexico, thunderstorms develop over land during the day and over the ocean at night due to a combination of factors, such as solar heating, sea breezes, and atmospheric stability.

During the day, solar heating warms the land more rapidly than the ocean, causing the air over land to rise and create low pressure. The cooler air from the ocean, known as a sea breeze, moves towards the low pressure over land. As this moist air moves inland and rises, it cools and condenses, forming clouds and eventually leading to thunderstorms over land.

At night, the process is reversed. The land cools more quickly than the ocean, resulting in high pressure over land and low pressure over the ocean. This causes a land breeze, where the cooler air from land moves towards the ocean. The moist air over the ocean then rises, cools, and condenses, forming clouds and thunderstorms over the ocean.

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Rock layers that dip at angles less than that of a hillslope will be exposed on the slope surface. These layers, known as ______, are unstable because there is no support at their ends that will hold them back from sliding.

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Rock layers that dip at angles less than that of a hillslope will be exposed on the slope surface. These layers, known as  Dipping beds, are unstable because there is no support at their ends that will hold them back from sliding.

Dipping beds are unstable because there is no support at their ends to hold them back from sliding. This lack of support can lead to landslides or slope failures, especially during heavy rainfall or other natural events that can destabilize the slope further.

To better understand the stability of these dipping beds, geologists often analyze the slope angle, rock composition, and other factors that contribute to the potential for landslides or other slope movements. By doing so, they can determine the risk associated with these geological features and implement appropriate measures to mitigate potential hazards.

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The overall ______ of a region may be directly affected by latitude, elevation, ocean currents, prevailing wind directions, and other factors

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The overall climate of a region may be directly affected by a variety of factors, including latitude, elevation, ocean currents, prevailing wind directions, and other environmental factors.

One of the most important variables influencing climate is latitude. The amount of solar radiation received by the Earth's surface varies with latitude, with places closer to the equator receiving more and areas closer to the poles receiving less.

This variation in radiation causes temperature changes and contributes to the general climate of a region.

Another key component influencing climate is elevation. Temperature drops as elevation increases, resulting in considerable climate changes between low-lying and high-altitude locales.

Mountain ranges, for example, frequently endure cooler temperatures and more precipitation than neighbouring low-lying places.

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A mid-latitude cyclone originates at a _________________________________ where warm tropical air meets cool polar air.

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A mid-latitude cyclone originates at a polar front, where warm tropical air meets cool polar air.

These cyclones are large-scale weather systems that form in the mid-latitudes, typically between 30° and 60° latitude. The process begins when the warm tropical air mass and the cool polar air mass collide along the polar front. The warmer air is forced to rise over the colder air, creating an area of low pressure at the surface.

This low-pressure system initiates the cyclonic rotation, with air flowing counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. As the cyclone develops, it brings various weather conditions, such as rain, snow, and strong winds, depending on the temperature and moisture characteristics of the air masses involved.

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n this section, a lower gray rock is successively overlain by beach sandstone, lagoon mudstone, and limestone. What is the best interpretation of what was going on

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Based on the sequence of rock layers described, it is likely that this area was once a coastal environment. The lower gray rock may have been part of the underlying bedrock, and was gradually covered by successive layers of sedimentary rock as the shoreline shifted over time.

The beach sandstone would have formed as sand was deposited along the shore, while the lagoon mudstone would have accumulated in the calm waters of a nearby lagoon. The limestone layer may have formed as the area became more submerged and carbonate-rich sediment began to accumulate.

Overall, this sequence of rock layers suggests a dynamic and ever-changing coastal environment that was influenced by changing sea levels and sediment deposition patterns.


In this section, the presence of lower gray rock successively overlain by beach sandstone, lagoon mudstone, and limestone indicates a transgressive depositional sequence. This means that the environment was gradually transitioning from a terrestrial setting to a marine one, with sea level rising over time.

The beach sandstone formed as a result of sediment deposition in a coastal environment, followed by the lagoon mudstone, which represents a more sheltered and calm water setting, and finally the limestone indicates the development of a deeper marine environment with an abundance of marine organisms.

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A discussion involving the role of human development in the amount of acid rain in a particular region would best fall into the category of:

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Answer: Environmental Science

Explanation:

Most U.S. beaches are shrinking or encroaching on the land rather than growing or moving seaward, so the land of the U.S. is getting smaller, not bigger. Causes include:

Answers

A combination of natural processes and human activity contribute to the shrinking of most U.S. beaches and the reduction of land area.

Most U.S. beaches are shrinking or encroaching on the land rather than growing or moving seaward, which results in the land of the U.S. getting smaller, not bigger. Causes for this phenomenon include:

1. Coastal erosion: The natural process of waves, currents, and wind gradually wearing away the shoreline can lead to a reduction in beach size.

2. Sea level rise: As global temperatures increase due to climate change, melting ice caps and thermal expansion of ocean water contribute to higher sea levels, which cause beaches to shrink.

3. Human activity: Construction of seawalls, jetties, and other coastal infrastructure can disrupt natural sand movement and accelerate erosion. Additionally, sand mining for construction purposes can further deplete beaches.

4. Coastal development: Building near shorelines can cause changes in wave patterns and sediment transport, leading to beach loss.

5. Storms and extreme weather: Strong storms and hurricanes can erode beaches, sometimes dramatically, as large volumes of sand are washed away by waves and storm surges.

Overall, a combination of natural processes and human activity contribute to the shrinking of most U.S. beaches and the reduction of land area.

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At Fuyan Cave in Southern China, paleoanthropologists found 47 adult teeth associated with cave formations dated to between 120,000 and 80,000 years ago. Fuyan Cave is most likely the Group of answer choices

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Fuyan Cave in Southern China, where paleo anthropologists found 47 adult teeth associated with cave formations dated to between 120,000 and 80,000 years ago, is most likely a site of prehistoric human occupation.

The Middle Palaeolithic period, when early people were living in numerous regions of the planet, is shown by the age of the cave formations. Human teeth were found there, which indicates that early humans also lived in this region of China at the time.

It is believed that the teeth discovered in Fuyan Cave belonged to early Homo sapiens or prehistoric humans like Homo erectus or Homo heidelbergensis. The cave would have served as a refuge for these prehistoric people, as well as a place to make tools, prepare food, and perhaps even be buried.

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Which sedimentary sediments (also rock made of this size sediment) takes the longest to permeate due to its low permeability

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The sedimentary rock that takes the longest to permeate due to its low permeability is shale.

Shale is made up of fine-grained sedimentary particles with diameters less than 0.004 mm. These particles are frequently clay minerals with small particle sizes and a high surface area to volume ratio.

This results in extremely low permeability, which means that fluids like water or oil cannot easily pass through the rock.

Because of its limited permeability, shale can operate as an effective caprock, keeping fluids from deeper reservoirs from migrating upward. If there is enough natural gas or oil in the shale, it has the potential to operate as a reservoir.

Advances in drilling technology have made it possible to extract these resources from shale formations in recent years, resulting in the development of shale gas and shale oil.

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A rock outcrop exposes a layer of obsidian overlain by volcanic ash and a layer with fragments of lapilli. What rock composition and eruptive type fits this description

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The rock composition of obsidian is a type of volcanic glass that is formed when lava cools quickly and solidifies without crystallizing. It is a felsic (silica-rich) rock that has a composition similar to granite.

The layer of obsidian in the outcrop suggests that there was a felsic volcanic eruption in the area. The layer of volcanic ash above the obsidian suggests that the eruption was explosive, producing a plume of ash that was carried by the wind and deposited over a wide area.

The layer of lapilli (small, rounded volcanic fragments) above the ash layer suggests that there was another, smaller explosive eruption that produced fragments of various sizes.

Therefore, the rock composition that fits this description is obsidian ,and the eruptive type is felsic explosive.

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The amount of rain that different place in Gauteng receive. Consider ways that mountain may influence the amount of rain that fall in certain areas ​

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Areas located to the east of the Magaliesberg range generally receive more rainfall than areas to the west.

Mountains can have a significant influence on the amount of rainfall that falls in certain areas. When moist air is forced to rise over a mountain range, it cools and condenses, resulting in precipitation on the windward side of the mountain.

As the air moves over the summit, it begins to descend, which causes it to warm and dry out, creating a rain shadow effect on the leeward side of the mountain.

In Gauteng, the presence of mountains can affect the amount of rainfall that falls in certain areas. The mountain ranges in the province include the Magaliesberg, Witwatersberg, Suikerbosrand, and Waterberg.

The Magaliesberg range, for example, has been known to significantly influence the amount of rainfall that falls in the area to the east of the range.

Moist air from the Indian Ocean is lifted over the range, causing it to cool and condense, resulting in precipitation on the windward side of the mountain. As the air descends on the leeward side of the mountain, it warms and dries out, creating a rain shadow effect.

Therefore, areas located to the east of the Magaliesberg range generally receive more rainfall than areas to the west. Other factors that can influence rainfall patterns include altitude, temperature, and prevailing winds.

Overall, the presence of mountains in Gauteng can have a significant impact on the amount of rainfall that falls in different areas, and understanding these patterns can be important for agriculture, water management, and other activities.

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________ was the English engineer and canal builder that observed that sedimentary strata in widely separated areas could be identified by their distinctive fossil assemblages.

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William Smith was the English engineer and canal builder who observed that sedimentary strata in widely separated areas could be identified by their distinctive fossil assemblages. Smith is considered to be one of the fathers of modern geology because of his contributions to the field.

In the late 18th century, Smith began to study the geology of England while working as a surveyor for the canal-building industry. During this time, he realized that the various layers of rock he encountered had distinct fossil assemblages. He also observed that these fossil assemblages were consistent across different locations.

Smith's observation was groundbreaking because it meant that by examining the fossils in sedimentary rock, geologists could identify the age of the rock and its relative position in the geological column. This principle is known as the law of faunal succession, and it is still used today as a tool for determining the age of sedimentary rocks.

Smith's work was not without controversy, however. Because he was not a wealthy gentleman, he was not initially accepted by the scientific community, who considered him to be an outsider. In addition, he was briefly imprisoned for debt in 1819, which prevented him from fully benefiting from the recognition he deserved for his contributions to geology.

Despite these challenges, Smith's work laid the foundation for modern geology, and his contributions continue to be celebrated today. He is known as the "Father of English Geology," and his observations about the relationship between fossils and rock layers remain a fundamental principle of the science.

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An outflow boundary is Group of answer choices the leading edge of cold air from a thunderstorm downdraft. a favorable place for future severe storm development, especially if two intersect. can be clearly seen on radar images. all of these

Answers

An outflow boundary, also known as a gust front, is the leading edge of cold air from a thunderstorm downdraft.

It occurs when the cold air from the downdraft of a thunderstorm spreads out horizontally upon reaching the ground, displacing the warmer air ahead of it. As the cold air pushes outward, it forms a boundary between the cooler air from the thunderstorm and the warmer air surrounding it. This boundary can often be clearly seen on radar images as a fine line or arc, which helps meteorologists track thunderstorm activity and identify areas of potential severe weather.

An outflow boundary can also create a favorable place for future severe storm development, especially if two boundaries intersect. When this happens, the interaction between the converging boundaries can cause a lifting motion in the atmosphere, which may trigger new thunderstorm development. This is particularly likely when the boundaries intersect over a region with abundant moisture and atmospheric instability, as these conditions are conducive to the formation of strong thunderstorms.

In summary, an outflow boundary is the leading edge of cold air from a thunderstorm downdraft, can be seen clearly on radar images, and can create a favorable environment for future severe storm development when two boundaries intersect.

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Over time, the movement of people on Earth has steadily increased. This has altered the course of human evolution by increasing ________. Group of answer choices

Answers

The mobility of humans on Earth has continuously risen over time. This has influenced human evolution by increasing genetic diversity. Here option A is the correct answer.

The movement of people on Earth has indeed increased over time, and this has had a significant impact on human evolution. One of the most significant effects has been an increase in genetic diversity, as different populations have mixed and exchanged genetic material. This has led to the development of new traits and adaptations, as well as greater resilience to environmental pressures.

However, the increased movement of people has also had negative consequences. For example, it has led to an increased susceptibility to diseases, as pathogens have been able to spread more easily between populations. This has, in turn, placed selective pressure on humans to develop immune responses and other adaptations to combat these diseases.

Moreover, some studies suggest that the increased movement of people may have led to reduced cognitive abilities, as it has disrupted traditional social and cultural practices that were important for the transmission of knowledge and skills. However, this is a controversial area of research, and more studies are needed to fully understand the impact of human migration on cognitive abilities.

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Complete question:

Over time, the movement of people on Earth has steadily increased. This has altered the course of human evolution by increasing ________.

A) Genetic diversity

B) Decreased brain size

C) Shorter lifespan

D) Increased susceptibility to diseases

E) Reduced cognitive abilities

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