instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: If the air temperature rises during a heat wave, what is likely happening to the atmospheric pressure? 
 Answer: It will decrease
answer:
Increasing air temperature decreases atmospheric pressure.


question:
Question: Carol is building a small rocket to test in her back yard and, after much consideration, decides to use a biofuel to power her rocket. She tells her friends it's because it will create _____ carbon dioxide than fossil fuels. 
 Answer: less
answer:
The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.


question:
Question: Fred has an isotope that decays quickly. What is likely true about it? 
 Answer: it can't be used to date old specimens
answer:

Because these isotopes decay more slowly, they can be used to date much older specimens.