input question: What is the final step of the following process: - People breathe and expel carbon dioxide - Engines produce carbon dioxide - Living things produce waste - Waste decomposes - Decomposition produces methane - Water evaporates - Water vapor joins the atmosphere???
output answer: Carbon dioxide, water vapor and methane are greenhouse gases

What is the final step of the following process: - Suns heat enters atmosphere - Green house gases enter from the earth - Heat is trapped in atmosphere - Different things on earth are hotter
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Answer: The overall planet is hotter.

Q: What is the final step of the following process: - Human beings burn fossil fuels (oil, gas, etc.) - Carbon dioxide from the burning fossil fuels enter the atmosphere - The make-up of the atmosphere changes - Some energy from the sun cannot escape back through the changed atmosphere - The earth begins to heat because of the extra trapped energy - Human beings cut down trees - Human beings do not re-plant the trees - Trees cannot help take the extra carbon dioxide from the atmosphere - The extra trapped energy starts to change the earth's short term weather
A: Eventually the long-term climate patterns start to change

Question: What is the final step of the following process: - Thunderstorms form over the ocean - An area of low pressure causes rotation - Several thunderstorms come together around this area - The storm is fed by rising air from warm ocean water evaporating
Answer: When the wind speeds reach 74 mph the storm is considered a hurricane.

[Q]: What is the final step of the following process: - Waste products are deposited in the blood - Blood is carried to the kidneys through the renal arteries - The kidneys contain filters inside - The filters capture the waste products - The waste is combined with water to make urine - The urine leaves the kidney and is collected in the bladder
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[A]: The cleaned blood is returned to the body.

Problem: Given the question: What is the final step of the following process: - 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
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The answer is:
The colder air is then warmed by the floor and the plants.