Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: If a gas in a closed area experiences increases in pressure and decreases in temperatures, the volume of the gas will be affected.

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


Question: 10 million years long can a large star be on the main sequence stage.

Answer: How long can a large star be on the main sequence stage?


Question: The distinctive appearance of cartilage tissue is due to polysaccharides called chondroitin sulfates.

Answer:
The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates?