Contains the element phosphorus:
O Carbohydrate
O Lipids
O Proteins
O Nucleic Acid

Nucleic acids

Explanation:

Proteins also contain nitrogen and often sulfur and phosphorus.( SOMETIMES)

but Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P).

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.