A common virulence factor found in causative agents of meningitis (N. miningitides, S. pneumoniae, H. influenza, S. agalactiae, L. monocytogenes) is capsules blebbing endotoxins hemolysins

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

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.