It mainly depends on the population size and technologies in the environment (Human Interference falls into that) .
Answer:
Germs
Explanation:
Germs is what forms all of the following, im not sure but I think germs would go in the blank
Solar wind is a stream of charged partials released from the upper atmosphere of the sun. this plasma consists of mostly of electrons, protons and alpha partials with thermal energys betwqeen 1.5 and 10 kev