Since the sun heats up more air at the equator than it does at the poles choose 1
1.it sets in motion massive circulations of air
2.warm, moist air at the equator rises and flows towards the poles
3.cool, polar air sinks and flows back towards the equator
4.all of the above
please help will mark brainliest if right

How does the fermentation of pyruvic acid in cells contribute to the formation of atp? a. it completes the oxidation of glucose to co2, creating atp. b. it generates lactic acid, which cycles back through the krebs cycle, producing 2 atp molecules. c. it converts fadh2 to phosphate, which bonds with adp. d. it produces 2 nad+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 atp molecules to be produced.