Q: - When water freezes it becomes 10% bigger, or takes up 10% more space - As water expands it puts great pressure on the walls of anything containing it, including any rocks which happen to be surrounding it - The force of the pressure exerted on the rock surrounding it is enough to wedge the walls of the crack farther apart, thus expanding and deepening the crack - Clay expends when wet like ice does - This causes rock to break apart - Some plants like mosses and lichens are capable of growing without soil on bare rock What might be the last step of the process?
A: When they do this their roots penetrate pores and crevices and cause rocks to split apart as the roots force their way down through the rocks
Question: - Sunlight passes through the glass into the greenhouse - The plants and floor absorb the the sunlight - The absorbed sunlight is converted to heat - The heat cannot escape the glass - The heat is trapped in the greenhouse - The hot air rises - The colder air at the top is pushed to the bottom What might be the last step of the process?
Answer: The colder air is then warmed by the floor and the plants.
[Q]: - Food leaves the esophagus and enters the stomach - The stomach churns the food - With the aid of stomach acids - The food becomes a thick liquid What might be the last step of the process?
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[A]: Is then passed to the small intestine.
input: Please answer the following: - There are places inside Earth where rock will melt - Melted rock inside the Earth is also called molten rock, or magma - Magma moves up through Earth's crust, but it does not always reach the surface - When magma erupts onto Earth's surface, it is known as lava - As lava flows from volcanoes it starts to cool What might be the last step of the process?
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output: Minerals form when magma and lava cool
Please answer this: - They expand to take the air in - The cells of the lung hold the air - They take in the air and remove the Oxygen - They inflate and all the bad air leaves through the mouth What might be the last step of the process?
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Answer: They do it all over again.
Question: - Pollution enters natural water sources such as rivers and lakes - The pollution negatively affects the water quality - The pollution negatively affects the health of plants and animals - The plants and animals have shorter, less healthy lives - The plants and animals do not reproduce very well - The number of plants and animals decreases over time - The quality of water gets worse and worse as there are no plants or animals to clean it What might be the last step of the process?
Answer:
Eventually there is nothing living in the water and it is unusable