The Precambrian time began at least 4,600 million years ago.
The Precambrian time is the earliest part of Earth's history, spanning from the formation of the Earth about 4.6 billion years ago to the beginning of the Cambrian period 541 million years ago. This period is characterized by the formation of the Earth's crust and atmosphere and the emergence of the earliest forms of life.
During this time, the first continents and oceans began to form, and the first forms of multicellular life evolved. As a result, the Precambrian time is the longest period of Earth's history, spanning over 4 billion years.
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Which of the four layers of the atmosphere (Stratosphere, troposphere, thermosphere, mesosphere) are defined by temperature inversions?
The stratosphere is defined by temperature reversals.
The stratosphere is a unique characteristic that separates it from the other three layers of the air: the lower atmosphere, mesosphere, and thermosphere. Dissimilar to the lower atmosphere where temperatures decrease with height, in the stratosphere, temperatures increment with altitude. This temperature reversal is brought about by the presence of ozone in the stratosphere, which absorbs the sun's ultravoilet radiation and makes heat. The stratosphere is consequently a steady layer that shields life on Earth from the sun's destructive radiation.
The stratosphere is likewise home to the ozone layer, which is a thin layer of ozone gas that shields the Earth from destructive UV radiation from the sun.
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The subsiding air causes semi-arid conditions on the West coast of South Africa
On South Africa's West Coast, the subsiding air creates semi-arid conditions. Due to surface heating, this pressure cell can be seen at a higher height in the summer.
The climate of Africa extends from the equatorial to tropical wet and dry, tropical monsoon, semi-arid, desert, humid subtropical, and subtropical highland climates. Temperate climates are uncommon, save for extremely high elevations on the margins of the continent. In reality, Africa's rainfall varies more than its consistently high temperatures do.
Due to its location in both the northern and southern hemispheres in equatorial and subtropical latitudes, Africa experiences a diversity of climates. Its fascinating humidity level is due to the continent's location largely in the intertropical zone between the Tropics of Cancer and Capricorn.
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The people of Oman and Yemen are able to make their living by farming and herding by relying on _____.
oil companies that pay farmers who let them drill beneath their land
their traditional method for bringing water from the mountains to villages
their governments, which have invested in large desalination plants
the southern Arabian Peninsula because it is a coastal plain with fertile farmland
The people of Oman and Yemen are able to make their living by farming and herding by relying on B. their traditional method for bringing water from the mountains to villages.
The people of Oman and Yemen are able to make their living by farming and herding by relying on their traditional method for bringing water from the mountains to villages.
This method, known as falaj, has been used for centuries in the region and involves the construction of irrigation canals and aqueducts to bring water from nearby mountains to the villages and farms. This system is still in use today and allows the people of Oman and Yemen to make their living off the land.
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what is the coldest temperature ever recorded in utah?
Answer: negative 62 degrees Fahrenheit
What is always used to find a coordinate?
Longitudes and latitudes are always used to find a coordinate.
What are longitudes and latitudes?The latitude sign is phi, and it represents the angle between a straight line at a certain place and the equatorial plane. Latitude is measured in degrees, beginning at 0° and ending at 90° on both sides of the equator, defining Northern and Southern latitudes.
The equator is defined as the line with 0° latitude. Longitude is another angular coordinate that defines the position of a point on the earth's surface and carries the symbol lambda. Longitude is defined as an angle pointing west or east from the Prime Meridian, which is the Greenwich Meridian. The maximum longitude is 180 degrees east of the Prime Meridian and 180 degrees west of the Prime Meridian.
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Topic: Case study on Chernobyl powerplant disaster
You have to research on
1. Why did the disaster take place?
2. When and where did the disaster take place?
3. What were the major health effects for exposed populations?
4. What radioactive elements were emitted in the environment?
5. How was Europe affected by the radioactive fallout?
Answer:
1. Why did the disaster take place?
The Chernobyl disaster took place due to a combination of design flaws, operator errors, and a lack of safety protocols. The reactor design was flawed, as it did not contain a containment structure to prevent the release of radioactive materials in the event of an accident. In addition, the operators of the reactor made a series of errors during a safety test, leading to a power surge in the reactor core, which caused an explosion and a fire.
2. When and where did the disaster take place?
The Chernobyl disaster took place on April 26, 1986, in Pripyat, Ukraine, which was then part of the Soviet Union.
3. What were the major health effects for exposed populations?
The major health effects for exposed populations were cancer, thyroid disease, and birth defects.
4. What radioactive elements were emitted in the environment?
The Chernobyl disaster released a number of radioactive elements, including iodine-131, cesium-137, and strontium-90, into the environment.
5. How was Europe affected by the radioactive fallout?
The radioactive fallout from the disaster at the Chernobyl power plant affected large areas of Europe, including parts of Ukraine, Russia, and Belarus. The radioactive materials contaminated large areas of farmland, forests, and lakes, making it difficult for local populations to access food and water. This contamination also led to the evacuation of hundreds of thousands of people from the affected areas. The radioactive fallout also had a significant impact on the health of the exposed populations, with increased rates of cancer and other health problems. In addition, the disaster had a major impact on the local economy, as the contaminated areas could no longer be used for agriculture or other economic activities. The disaster also had a lasting impact on public perception of nuclear energy, with many people becoming skeptical about the safety of nuclear power.
FILL IN THE BLANK. another possible spot for jenny to move to is ______ where it would be fun to climb a large volcano.
Another possible spot for Jenny to move to is a place with an active or potentially active volcano, where it would be fun to climb a large volcano. Climbing a volcano can be a thrilling and adventurous experience, offering stunning views, unique landscapes, and a sense of accomplishment.
However, it is important to note that climbing a volcano can also be dangerous, especially if the volcano is active or potentially active, and should only be attempted by experienced and properly equipped individuals.
Jenny should thoroughly research any potential volcano-climbing destinations, considering factors such as the current level of volcanic activity, the difficulty of the climb, and the local weather conditions.
She should also ensure that she has the proper gear, including proper clothing, footwear, and safety equipment, and should follow all recommended safety guidelines and instructions.
Whether Jenny decides to climb a volcano or not, it is important for her to have a clear understanding of the risks involved and to make an informed decision based on her personal preferences, skill level, and overall safety.
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The answers are in the screenshot.
the border dispute in Antarctica was more easily resolved than the disputes shown in Israel and Western Sahara?
The statement that the, " the border dispute in Antarctica was more easily resolved than the disputes shown in Israel and Western Sahara" is True.
Why was the border dispute in Antarctica easier to resolve ?The border dispute in Antarctica was more easily resolved than disputes in Israel and Western Sahara because the Antarctic Treaty of 1959 was signed by 12 countries, including the United States and the Soviet Union, to demilitarize Antarctica and promote scientific cooperation and research.
This treaty effectively put aside any territorial claims and established Antarctica as a neutral, scientific preserve. On the other hand, the disputes in Israel and Western Sahara are rooted in deep historical, cultural, and political tensions that have not been resolved through diplomatic means.
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Based on your work write a brief description of how the clastic sediment from Yosemite valley might change as it travels down stream to lake McClure then describe how you could use these insights to interpret clastic rocks in general
The correct answer is Granitic rocks are any of several types of plutonic rock that may be found in Yosemite, including granite, granodiorite, tonalite, quartz monzonite, and quartz monzodiorite.
Glacial landforms include waterfalls, lakes, moraines, rounded domes, U-shaped valleys, jagged summits, and granite spires. Granite that has been polished by glaciers is another sign of glaciation and is widespread in Yosemite National Park. The collection also includes pegmatite and porphyry, as well as various varieties of granitic rocks found throughout the park. Larger fragments of the minerals that make up these rocks, including quartz, scheelite, orthoclase, calcite, barite, and hornblende, are also included in the collection. Granitic rocks predominate in the exposed geology of the Yosemite region, with some earlier metamorphic rock. The region around Yosemite National Park was on the border of a very young North American continent during the Precambrian period, when the first rocks were set down.
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the primary source of water vapor and carbon dioxide for earth s early atmosphere was most likely .
The primary source of water vapor or carbon dioxide to the earth's early atmosphere was often likely outgassing.
The gases that cover the planet make up our environment. It gives us oxygen to breathe, protects us from the Sun's damaging ultraviolet (UV) radiation, traps heat to warm the globe, and lessens the dramatic changes in temperature between day and night, all of which contribute to build life possible. There is an atmosphere on all of the planets within the solar system, yet none of them has the same proportion of gases or composite resin as the oxygen on Earth. As one moves away from the Earth's surface, the breath gets thinner. It eventually disappears, leaving nothing but emptiness.
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What questions do you think are important to ask when deciding whether a social media post is reliable?
A. Does the post rely on experts?
B. Does the post use up-to-date information?
C. Does the source have a good reputation?
D. Does the source have a reason to present information in a certain way?
E. Does the source present the information fairly?
F. Do other reliable sources provide information that supports the post?
Answer:
it’s C
Explanation:
I get it right:)
how do you think the development of the korean peninsula might have been different if there were no mountains where the peninsula connects to the mainland?
If there hadn't been any mountains, the Korean Peninsula would have formed very differently. Korea would have joined with China or formed one large nation. Additionally, trade would have significantly risen.
The Korean Peninsula the country's main landmass and 3,960 neighboring islands make up Korea. In Northeast Asia, between China and Japan, is where the peninsula is situated. Korea is divided from China to the northwest by the Amnok River, and from China and Russia to the northeast by the Duman River. To the west is the Yellow Sea, to the south is the East China Sea and Korea Strait, and to the east is the Korean East Sea. The Liancourt Rocks, Ulleung Island, and Jeju Island are notable islands. While the eastern and northern portions of the peninsula are mountainous, the southern and western portions of the peninsula have developed plains. Mount Paektu which rises to a height of 2,744 meters is the tallest mountain in Korea.
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which process in the hydrologic cycle occurs first when starting with ocean water and ending with rain? question 1 options: condensation infiltration evaporation precipitation
Evaporation process in the hydrologic cycle occurs first when starting with ocean water and ending with rain. When humid air is elevated, it cools, causing water vapor to condense into clouds.
The evaporation of water from the ocean's surface kicks off the hydrologic cycle. Clouds are created when moist air is raised, cools, and water vapor condenses. Around the world, moisture is moved until it eventually returns to the ground as precipitation. One of two things may happen once the water touches the ground: either some of it evaporates back into the atmosphere, or it seeps beneath the surface and becomes groundwater. Either through transpiration or by seepage, groundwater finds its way into the seas, rivers, and streams. Runoff, which drains into lakes, rivers, and streams and flows back to the oceans, makes up the remaining water on the earth's surface. The moisture level in the cold, drier air flowing directly above the lake surface rises as a result of the warm surface water's evaporation. Water vapor in the colder air evaporates further, condensing to create ice-crystal clouds that are carried toward the beach.
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Explain three likely reasons why Ghana's largest source market for leisure tourists is Nigeria
Nigeria and Ghana are located next to each other and have shared land borders for centuries.Ghana is typically a cheaper destination than its neighboring countries, making it an attractive option for Nigerians looking for a more affordable holiday.
What do you mean by neighboring countries?
Neighboring countries refers to those countries that share a physical border or a maritime boundary. These countries may be geographically close to each other and have similar cultural, political and economic histories. Neighbors usually have strong ties that are based on mutual interests, shared resources, and a common language or culture. They may have a long history of conflict or cooperation. Some countries may have open borders and allow for the free flow of people, goods, services, and information. Other countries may have closed borders and restrict the movement of people and goods. Countries that are neighbors may cooperate in trade, military defense, politics, or other areas. Economic integration, such as the European Union, is also common between neighbors. Neighbors can have a positive or negative impact on each other. It is important for countries to understand and respect the sovereignty of their neighbors in order to foster a productive and peaceful relationship.
The two countries share a common cultural heritage and many Nigerians are familiar with Ghanaian culture. This makes it easier for Nigerians to feel comfortable in Ghanaian cities and towns.
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What 2 locations was the Spanish-American War fought?
Answer:
Philippines and Cuba
Explanation:
When studying the Calumet region of Illinois and Indiana, Alfred Meyer noted four stages of development as new groups occupied this land. In stage 2, __________, farmers used the land primarily to grow food for their families and their small communities. A. subsistence agriculture B. commercial agriculture C. conurbanization D. fur trading
Answer: Subsistence agriculture
Explanation:
Which of the following is the best example of an intervening opportunity that influenced migration?
A.
Many African American citizens were heading to Chicago after the Civil War, but settled in border cities just north of the Deep South.
B.
Americans from the South and the East migrated to California in search of gold in the late 1800s.
C.
Some US citizens migrated to Canada to avoid the draft during the Vietnam War.
D.
Many oil workers migrated from Texas to Wyoming when oil was discovered near Evanst
The best example of an intervening opportunity that influenced migration is many African American citizens were heading to Chicago after the Civil War but settled in border cities just north of the Deep South. Option (A) is correct.
What are intervening factors in migration?Intervening barriers are things that migrants face or keep them from achieving their objectives.
An illustration of an intervening opportunity would be a migrant who initially sets out to travel to a certain location where he or she has heard there are numerous opportunities. However, the migrant can choose to relocate if they come upon a good set of chances anywhere along the way.
Therefore, Option (A) is correct.
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Which of the following is NOT true about geological folds?
1.Geological folds can arch upward or sink downward
2.Although some geological folds have symmetrical sides, others do not
3.Bowl folds are formed when rock is formed into a round and hollow shape
4.Chevron folds have sharp, pointed edges
Geological folds can arch upward or sink downward is true about geological folds. The correct option is option A.
What is Geological folds.Geological fold is a wave-like geologic structure that forms when rocks deform by bending instead of breaking under compressional stress. It is a a stack of originally planar surfaces, such as sedimentary strata, that are bent or curved during permanent deformation.
Geological fold occurs when tectonic processes put stress on a rock, and the rock bends, instead of breaking. Folded rocks are common in mountain ranges like the Alps, Himalayas and the Scottish Highlands.
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which physical feature of eastern asia is marked by the star on this map? physical map of far eastern asia with a star marking a large land locked desert area. responses the himalayas the himalayas the altay mountains the altay mountains three gorges three gorges the gobi desert the gobi desert
Based on the location of the star, the physical feature there is The Himalayas. The correct answer is A.
The Himalayas are where?They are situated in Tibet, which is governed by China. They are about halfway between India and China. The region of Tibet that the star on the map rests on is situated halfway between India and China. The Himalayas, the world's highest mountain ranges, are the only physical feature present.
Between the Tibetan plateau and the Indian subcontinent, the Himalayas mountain range is situated in eastern Asia. This mountain is surrounded by some of the tallest peaks, including Mount Everest, which is situated halfway between China and Nepal.
Additionally, Mount Everest is 29,029 feet above sea level at an elevation of around 8,84 m. The Himalayas are believed to be surrounded by 52.7 million Asians, who live in nations such as China, Nepal, India, Pakistan, and Bhutan.
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throughout time, continents break apart and collide and ocean basins open and close. this cyclical process is known as the .
The Wilson Cycle is a model that explains how ocean basins open and close as well as how tectonic plates subduct and diverge during the building and disassembly of supercontinents.
Continental drift is a phenomenon that caused the continents to separate. Alfred Wegener, who suggested that the Earth's continents were originally a single supercontinent, initially put out this hypothesis in 1912. As the continents separate, Pangaea continues to fragment. The Pacific Ocean is growing smaller while the Atlantic Ocean is expanding. Every 500 million years or so, the continents merge and separate. The cycle of supercontinents is what causes this. A continental mountain chain is created when the remainder of the sea bottom is destroyed and continents clash.
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Which landform most likely formed when lava cooled and solidified?
A volcano is a landform most likely formed when lava cooled and solidified
What is a volcano?Generally, A volcano is a rupture in the Earth's crust where molten rock, debris, and gases are released from below the surface. Volcanic activity is caused by the movement of tectonic plates, which is when two of the Earth's plates move and collide.
Volcanic eruptions can cause widespread destruction and loss of life, with the potential to reshape the Earth's surface. Moreover, this landform differs from others such as mountains, hills, valleys, etc. due to lava, which is molten rock and this lava is key in the formation of a volcano.
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aerosols can impact the climate in two ways (directly by scattering and absorbing solar and terrestrial radiation) but also indirectly. what process is involved in indirectly impacting the climate through aerosols?
The process involved in indirectly impacting the climate through aerosols is known as aerosol-cloud interactions.
This process involves aerosols interacting with existing cloud droplets in the atmosphere, causing them to grow larger or smaller and altering the amount of sunlight reflected back into space.
This in turn impacts the amount of energy that is absorbed or reflected by the Earth's atmosphere, which can lead to changes in temperature, humidity, and other climate variables.
Thus, aerosols can indirectly affect the climate by interacting with clouds, which can lead to changes in the Earth's energy balance. These changes can then cause changes in atmospheric temperatures, weather patterns, and other climate variables.
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Following the UN decision to partition Palestine into separate Palestinian and Israeli states, ____________.
A. Germany invaded and annexed the West Bank
B. the United States was granted control of Jerusalem
C. thousands of Jews became refugees in surrounding Arab countries
D. a series of wars dramatically increased the size of the Israeli territory
What kind of tides would you expect during a half moon?
Neap tides result from this, which are moderate tides with slightly lower high tides and slightly higher low tides than usual. The first and third halves of the moon, when the moon seems to be "half full," are when neap tides occur.
Due to the Moon and Sun's opposing gravitational forces at these two periods in the lunar month, the tidal range is at its lowest around the Quarter and Half Moons. These tides are known as neap tides or neaps, which are derived from the Anglo-Saxon word for powerless. The bulges cancel each other out during the quarter phases of the moon when the sun and moon are at right angles to one another. A neap tide is the outcome, which has a smaller difference between high and low tides. Particularly weak tides are neap tides.
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why are geomorphologists often some of the first people to arrive at the location of a recent, large slope failure
The correct answer is Area-specific triggers such probable earthquakes and volcanic eruptions.
The most frequent minerals involved with earth failures are clays. during chemical weathering, take shape (acidic fluids like water decomposing the minerals). Their strength changes as a result of their expansion and contraction. There are periods when they are weaker and a slope failure is more likely. The relationship between historical landslides and the variables influencing landslide occurrence may be identified by superimposing the landslide inventory map on maps of the kind of bedrock, slope steepness, and indirect hydrologic measurements. The ratio between the active shear stress and the available shear strength, which may be represented in terms of a safety factor if these numbers are integrated across a possible (or real) sliding surface, fundamentally determines how stable a slope is.
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What is between winter and spring?
Answer:
spring runs from March 1 to May 31; winter runs from December 1 to February 28 (February 29 in a leap year).
Explanation:
Help me find the correct answer please
Plate tectonics is the theory that the Earth's _____ is broken into pieces that move around on top of the _____.
Answers:
1. crust; core
2. mantle; core
3. crust; mantle
4. mantle; crust
In plate tectonics, Earth's outermost layer, or lithosphere—made up of the crust and upper mantle—is broken into massive rocky plates. These plates lie on pinnacle of a in part molten layer of rock known as the asthenosphere.
What is plate tectonic theory of the earth?Tectonic Plates
The device of ideas in the back of plate tectonics concept suggests that Earth's outer shell (lithosphere) is divided into various plates that float over the Earth's rocky inner layer above the gentle core (mantle). The plates act like a challenging and inflexible shell in contrast to Earth's mantle.
Plate tectonics is the theory that Earth's outer shell is divided into quite a few plates that flow over the mantle, the rocky internal layer above the core. The plates act like hard and inflexible shells compared to Earth's mantle. This sturdy outer layer is called the lithosphere.
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https://brainly.com/question/1162125#SPJ1whats the net population of a country if the birth rates are 18 death rates are 5 and the net migration is -4
The net population of the country is 9. This is due to the fact that the birth rate is higher than the death rate and the net migration rate is negative, meaning that more people are coming into the country than leaving it. Thus, the population of the country is increasing by nine people each year.
18 - 5 - 4 = 9The net population of the country is 9.
The net population of a country is determined by subtracting the death rate and the net migration rate from the birth rate. In this example, the birth rate is 18, the death rate is 5, and the net migration rate is -4. When these three figures are subtracted from each other, the net population of the country is 9. This means that the population of the country is increasing by nine people each year. This is likely due to the fact that the birth rate is higher than the death rate, and the net migration rate is negative, meaning that more people are coming into the country than leaving it.
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which relationship results in the highest level of evaporation from earth’s water reservoirs?
Answer:
Explanation:
A. greatest surface area and most direct sunlight
B. greatest surface area and least direct sunlight
C. least surface area and most direct sunlight
D. least surface area and least direct sunlight
I hope this helps !
stephen is entering hundreds of temperature values into a worksheet for a climate research project, and wants to speed up data entry by leaving freezing point values as blanks rather than typing zeroes. why will this cause complications in the calculation of the average temperature?
The value this cause complications in the calculation of the average temperature the answer is: Excel will disregard the empty cells and only use the ones with numeric values to calculate the average. So rather of leaving blank cells, Stephen should insert zeroes.
What is temperature value?
The 3 different scales that are now in use are Kelvin, Celsius, and Fahrenheit. The Fahrenheit temperature scale divides the distance between the freezing point of water, 32, and the boiling point of water, 212, into 180 parts. One of the seven SI basic units, the kelvin is the SI unit for thermodynamic temperature. We define a second unit of temperature, the degree Celsius (°C), which is unusual for the SI.
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