Answer:
2
Explanation:
The half-life of a radioactive material is the time taken for a nuclide to decay to half its original composition.
Given:
Half-life = 10yrs
Number of atoms in parent = 100atoms
Unknown:
Number of half-lives what will pass for 25 atoms to remain:
Start First half life Second half life
Number of years 0 10 20
Number of atoms 100 50 25
The number of half-lives that will pass is 2
Is America moving towards or away from Europe?
Answer:
america is moving away from Europe
Answer: away
Explanation:
Which of the following is a benefit created by the construction of the Aswan High Dam in Egypt? i. Generated electricity is used by millions of people. ii. Floods are controlled, reducing damage to farmland. iii. Silt is no longer carried down river. A. ii. only B. i. and iii. only C. ii. and iii. only D. i. and ii. only Please select the best answer from the choices provided A B C D
Answer:
Generated electricity is used by millions of people.Floods are controlled, reducing damage to farmland.Explanation:
The dam likewise improved route over the Nile, profiting the travel industry and fishing businesses. Water from the dam is utilized to take care of 12 force turbines, which gives half of Egypt's capacity requests. The repository likewise assists gracefully with watering during dry spells.
Answer:
the answer is i and ii
Explanation: i. Generated electricity is used by millions of people.
ii. Floods are controlled, reducing damage to farmland.
length is call vector or scalar quantity
Answer:
Scalar quantity
Explanation:
Scalar quantities give a magnitude, while vector quantities give a magnitude and a direction. The answer will be a measurement that does not change, regardless of the direction of action. Displacement is a measure of length in a given direction; distance is the scalar version of displacement. hence length is scalar quantity
please help!!!!!!!!!!!!!!!!!!
Which of the following areas of the United States received the most overall precipitation in 2000?
A.
Rocky Mountains
B.
Great Plains
C.
Sierra Nevada Mountains
D.
Atlantic coast
Answer:
The Atlantic coast
I hope this helps
The areas shaded in green on the map below is most likely...
A) Brazil
B) South America
C) the American rainforest
D) the Sahara desert
Answer:
A) Brazil
Explanation:
In the map shown, the area shaded green is most likely Brazil.
The continent in the map figure is South America
It contains countries such as Brazil, Peru, Bolivia, Suriname etc. The North eastern region is the dominated by the country of Brazil. The largest rainforest in the world is located in the country.why is it likely that scientist will produce new theories to explain the movement of plates in the future?
Answer:
Because with any theory it can be changed.
Explanation:
If new evidence is found to disclaim a theory then another theory will be made to replace the old theory. No theory can every be a law since it is a theory. Because theories can always be changed due to new evidence.
(so basically if they find new evidence about the movements of planets then that will make a new Theory)
Example: one of the early theories about how an atom looked like was By J.J Thompson. He said that an atom looked like a plum pudding. The electrons were the berries. People believed that for a long period of time since it was backed by science. Yet that was later disclaimed by new evidence which made a new theory.
(I hope this helps!)
:)
Please hurry I need this to move on to my next question!
Which part of the ocean floor is the shallowest and closest to land?
Trench
Abyssal Plain
Continental Shelf
Continental Slope
Thanks to whoever answers this question I really appreciate it!
What is the difference between hard and soft engineering? brainliest for best answer
see if you can explain why it takes six times as much water to produce 1kg of beef as 1 kg of rice
Answer:
One must raise food (grain, corn) for the cow to eat before it is fully grown.
How has growing affluence affect coastal areas
Answer:Climate change threatens coastal areas, which are already stressed by human activity, pollution, invasive species, and storms. Sea level rise could erode and inundate coastal ecosystems and eliminate wetlands. Warmer and more acidic oceans are likely to disrupt coastal and marine ecosystems.
Explanation:
Many people left England in the 17th century to come to North America because the colonies represented a chance to worship freely. This attraction to come to a new place is known as a
A) mental map.
B) pull factor.
C) push factor.
D) mass wasting.
The factors make the place of destination more interesting than the place of origin. Hence the option B is correct that is the pull factor.
Why did the people of England come to the new place ?Many people left England in the 17th Century to come to North America as they had colonies that represented a chance for worship this attraction was from a new place that was known as the pull factor.
The push and pull factors have attracted many thought the ancient history and place that offer good soil, river valleys, and place of shelter are some of the places that has attracted mankind as his search for the comfort of life and many work opportunities.
Find out more information about the people who left England.
brainly.com/question/18218045.
State the two types of mountains with examples.
ins:
Answer:
Volcanic mountains Plateau mountains
Explanation:
Give two land forms or occurrences that are usually associated with convergent and divergent plate boundaries.
Answer:
Ridges, Mountains, and trenches
Explanation:
Divergent plates travel away from each other, this causes open spaces. Convergent plate drive into each other creating mountains and ridges, an example is the Indian plate driving into the Asian plate creating the Himalayas.
Bakit kaya
humahantong sa galit
at digmaan ang mga
pagkakaiba sa
relihiyon?
Answer:
Following are the difference to this question:
Explanation:
In the given question, it is different because most of those who contribute toward faith or contribute to a community have different principles. Many through each faith would want to be persuaded, or one needs to also be them so that they should not understand and cause a war. It's not about our naman to spirituality, our association with him.
The United States is the world leader in __________.
Answer:
The United States is the world leader in manufacturing.
What is this answer?
What is the most direct evidence in the photo that Earth's surface is currently being changed by erosion?
A.
A variety of different plants are growing along the riverbed.
B.
The muddy water shows that sediment is being carried from one place to another.
C.
The snowcap in the background shows that the weather is different in that place.
D.
The mountain in the foreground has a flattened top.
Answer:
b
Explanation:
a P e X i got it correct
ILL GIVE BRAINLIEST!!! HELP ME PLS
How is life affected by living on the US-Mexico border?
(Its just about how is people's life who live near the border).
Answer:
The streets of downtown Laredo, Texas, are deserted. For decades, this dense retail district has catered to Mexican shoppers coming across the bridge from Nuevo Laredo. But these days, stores like Cindy's Electronics, Classic Perfumes, and Casa Raul Mens' Clothes are shuttered. "Now our business has dropped 80 to 90%," says Natividad Dominguez, leaning on a glass case full of empanadas, turnovers and donuts at Pano's Bakery. "People would come across the bridge and pick up a donut. But no more. It's affecting us a lot."
Explanation:
how do canadians refer to their native population ?
Answer:
In Canada, the term Indigenous peoples (or Aboriginal peoples) refers to First Nations, Métis and Inuit peoples. These are the original inhabitants of the land that is now Canada.
Explanation:
don´t forget to branliest:)
A city is rioting, and large groups of criminals are roaming the streets and breaking into homes and businesses. The mayor and other leaders have fled. So many people are participating in the violence that the remaining police officers are unable to enforce the law.
Which of the following terms best describes the government of the city that is described in the passage above?
A.
an anarchy
B.
an authoritarian government
C.
a fraudulent government
D.
a democracy
Answer: It actually A
Explanation:
Answer:
its a
Explanation:
What similarities and differences do you see in the five major religions
Answer: Similarities: each one has someone they follow; Differences: have different amounts of God.
Explanation:
These 5 religions (Christianity, Judaism, Islam, Hinduism, and Buddhism) each have a being which they consider to be the boss, the leader, or the creator of the world. Each of them understands that the supreme being they follow is the creator of the laws that currently govern us. They believe that their ideas and theories are what have contributed to the evolution of the world.
Among the differences are that the first three religions (Christianity, Judaism and Islam) believe in the same and only God, these are known as monotheistic religions. In the case of Buddhism, this is not considered as a religion but as a lifestyle but has a person as its founder. In the case of Hinduism, this is a religion but it has various deities, one of the most prominent is Brahman.
hi i just need a lil help!!
Answer:
The more dense the rocks get
Explanation:
The deeper we go towards the center of the planet we will find more and more dense rocks. This is because of the force of gravity of the planet. That theory was devised by Sir Isaac Newton and it still holds true to this day. Every layer has more density than the previous layer all the way to the core.
Why is Leonardo da Vinci's Vitruvian Man considered to be a typically humanist piece of Renaissance art?
It uses classical science to analyze the human form.
Answer:
Your answer would be D!
Explanation:
It uses classical science to analyze the human form.
Explain any two reasons for differences in climates around the world
Answer:
There are differences in climate around the world because of differing amounts of radiation received from the Sun at different parts of the Earth at different times of the year. More heat from the Sun is received near the equator than near the north and south poles where the angle of the Sun's rays is lower.
Cutting "steps" or terraces into the sides of hills is one way to
A. increase arable land for farming
B. decrease the risks of flooding
C. store water during times of drought
D decrease agricultural yields
Answer:
Cutting ''steps'' or terraces into the sides of hills is one way to increase arable land for farming.
Explanation:
In order for farming to take place, there need to be certain conditions that will enable it. One of the most important conditions is arable land. This type of land is limited though, and in multiple places what nature has provided in this type of land is not enough to satisfy the demand of humans.
In order to increase the arable land, the humans became inovative, and they thought of cutting up ''steps'' or terraces into the sides of steep hills and mountains. In this way, they were able to create flat land on the sides of the hills and mountains and make it suitable for farming. This has increased significantly the amount of arable land and production of food, and some of the best examples are some of the countries that have very high population but limited arable land naturally, like Japan, China, Vietnam, and Indonesia.
Answer:
it is indeed A
Explanation:
Explain how an increase of the annual melt season in Antarctica can have global effects.
Answer:
A longer melt season in Antarctica leads to a greater loss of land-based glacier ice. The water from the melted land glaciers runs into the oceans and leads to an overall increase in volume. This change has global effects.
Explanation:
A longer melt season in Antarctica leads to a greater loss of land-based glacier ice. The water from the melted land glaciers runs into the oceans and leads to an overall increase in volume. This change has global effects.
Energy consumption contributes directly to which of the following environmental problems?
eroded soils
poor water quality
degraded soils
depletion of fossil fuels
Answer:
Depletion of fossil fuels
Explanation:
Energy consumption uses fossil fuels (unless it is nuclear or renewable energy), so in turn will deplete fossil fuels.
The other three possible answers are indirect to energy consumption, so therefore are incorrect.
Hope this helped xx
Answer:
Answering so the other person can get brainliest.
On a business trip, Vicente drove 426.8 miles during the first week. During the second week, he drove 489.7 miles. By what amount did the number of miles that Vicente drove increase in the second week?
Answer:
62.9 miles
Explanation:
Which statements are true about both Japan and China?
Check all that apply.
A. Japan had significant growth that began after World War II and
kept going until a recession hit in the 1990s.
B. China still places strong restrictions on its people.
C. Much of the construction in Tokyo was driven by their huge
economic growth after World War II.
D. China and Japan have the same forms of government.
Answer:
Explanation:
The answers are A. B. and C. Ap*x