input question: What is the final step of the following process: - Water evaporates from the ground up to the sky - Water droplets are in clouds - The air gets cold - Water droplets turn into ice crystals???
output answer: Ice crystals in clouds stick together and become snowflakes.

What is the final step of the following process: - Boil salt water - The water will turn into water vapor - Collect the water vapor - Allow the water vapor to cool - The water vapor will turn into liquid water
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Answer: The salt will be separated from the water.

Q: What is the final step of the following process: - Contact is made with a virus - The virus enters the human or animal body - The virus goes to the part of the body that contains its food - The virus consumes part of the body or materials that the body uses - The virus replicates and spreads
A: The virus causes symptoms in the body as the immune system tries to expel the virus.

Question: What is the final step of the following process: - Energy builds up in the crust of the earth - The energy causes the fault lines give way - The earth's plates move - The energy radiates outward from the fault in all directions
Answer: The seismic waves shake the earth as they move through it.

[Q]: What is the final step of the following process: - Grapes are grown - A selection of grapes are gathered - The grapes are washed - The stems are removed from the grapes - The grapes are crushed and added to a fermation container - Yeast is added to the container
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[A]: The yeast eats the sugar in the yeast, releasing alcohol

Problem: Given the question: What is the final step of the following process: - Acid rain is produced by chemicals that reach into the atmosphere - Falls onto the ground - The acid rain starts scouring rocks - Destroys vegetation
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The answer is:
The lack of vegetation alters the surrounding environment.