input: Please answer the following: - 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 - Eventually there is nothing living in the water and it is unusable - What might be the first step of the process?
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output: Pollution enters natural water sources such as rivers and lakes

Please answer this: - Makes water acidic - Kills fish - Kills the soils in trees - Leaves are also harmed. What might be the first step of the process?
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Answer: Acid rain enters the atmosphere and lands

Problem: - The heated water evaporates - The salt is left behind - The evaporated water condenses on a cold surface - The evaporated water is collected - The process is repeated - More salt is removed from the water. What might be the first step of the process?

A: Water is heated

Problem: Given the question: - The roots of the growing plants start to break up the rock - The plant acids dissolve the rock - The rock is broken down into smaller pieces - Erosion begins. What might be the first step of the process?
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The answer is:
Plants start growing on or near the rocks

input question: - Above the oven is a tank of water that is sealed - The tank of water begins to boil above the oven - A the water boils steam is created - The steam is denser than air so it needs a place to go - The steam is forced out of the tank and into a piston - The piston moves up - The valve of the piston closes - The valve on the next piston opens - The steam fills the next piston, driving it up, and the other one down - What might be the first step of the process????
output answer: A fuel is heated in an oven

input question: - The radiation is aborbed by the Earth - Some of the radiation goes back into space - Some is trapped by the atmosphere - If too much heat is trapped - Global warming occurs. What might be the first step of the process????
output answer:
The sun gives off radiation