Explain one way the biosphere regulates with the atmosphere?

Atmosphere maintains soil health and influences the hydrological cycle. Correct me if I'm wrong

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.

The answer for your problem would be a. 7