I believe the answer is A the Atlas Mountains
Explanation:
Given the importance of oxygen for animals, researchers suspected that a sudden increase in the gas to near-modern levels in the ocean could have spurred the Cambrian explosion. ... This supported the idea of oxygen as a key trigger for the evolutionary explosion.
The wind circulates in each of the two hemispheres in three distinct cells which help transport energy and heat from the equator to both of the poles. The winds are driven by the energy from the sun at the surface as warm air rises and colder air sinks. The circulation cell that is closest to the equator is called Hadley cell.
