input: Please answer the following: What is the final step of the following process: - People dig up coal from the ground - People burn coal for heat or electricity - Pollution from the coal goes into the sky - Coal pollution enters clouds - Clouds rain over an area
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output: The polluted rain becomes acid rain.

input: Please answer the following: What is the final step of the following process: - Air is taken into the body via the nose or mouth - The air travels into the windpipe - The windpipe divides the air to the two lungs via the bronchial tubes - The lungs oxygenate the blood in the body - Carbon dioxide is filtered out by every cell in the body - The carbon dioxide is carried back to the lungs via the bloodstream
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output: The carbon dioxide is exhaled.

input: Please answer the following: What is the final step of the following process: - A plant dies - The remains of the plant are buried very fast in sediment - The soft parts of the plant decay - The hard parts of the plant are replaced with minerals - The sediment turns into rock - The rock erodes
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output: The fossil appears on the surface of the ground.

input: Please answer the following: What is the final step of the following process: - Coal is mined out of the ground - Coal is pulverized into fine powder - The coal is mixed with hot air - The coal and hot air are blown into a boiler - The coal and hot air burn over a fire - Highly purified water is pumped through pipes in the boiler - The water turns into steam - The steam presses against turbines - The turbines spin
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output:
Electricity is produced.