You will be given a definition of a task first, then some input of the task.
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

If a gas in a closed area experiences increases in pressure and decreases in temperatures, the volume of the gas will be affected.
Output:
If a gas in a closed area experiences increases in pressure and decreases in temperatures, what other attribute of the gas will be affected?