In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: The term half-life decribes the amount of time required for half of the original material to decay in an isotope. Question: What term decribes the amount of time required for half of the original material to decay in an isotope?

A: half-life
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Q: Sentence: Property to time kind of variation does a rate measure. Question: What kind of variation does a rate measure?

A: property to time
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Q: Sentence: Gases such as co2 and methane can trap thermal energy in earth's atmosphere before radiating it into space. Question: Gases such as co2 and methane can trap what energy in earth's atmosphere, before radiating it into space?

A:
thermal energy
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