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djyliett [7]
3 years ago
15

Residence time is the amount of time in which a substance remains in a reservoir, such as the atmosphere. For example, the resid

ence time of carbon tetrafluoride (CF4) in our atmosphere is more than 50,000 years. In contrast, carbon dioxide (CO2) has a residence time that is much shorter. Which statement best explains how the residence time of a substance affects the atmosphere?
A. Substances that have a longer residence time are more beneficial to the atmosphere.

B. Substances that have a shorter residence time make up a smaller portion of the atmosphere.

C. Substances that have a longer residence time will cycle faster through the atmosphere.

D. Substances that have a shorter residence time do not stay in the atmosphere as long.
Advanced Placement (AP)
2 answers:
Alja [10]3 years ago
5 0

Given the description of the meaning of "residence time," you must conclude ...

... D. Substances that have a shorter residence time do not stay in the atmosphere as long.

xeze [42]3 years ago
5 0

Answer:

The correct answer is D.  Substances that have a shorter residence time do not stay in the atmosphere as long.

I just took the test on plato and it was right.

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