Thin, watery body fluid

ANSWER ASAP

your answer should be c) enjoy!

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"

density and pressure