The answer is C) 100 units of energy because of the 10% rule in biology! Hope this helps you~
1. Moist air
2. The less dense air, the less oxygen (at least that's what my teacher says)
Nitrate and Sulfate are alternative electron acceptors. With the use of these it would not use oxygen so It would be Anaerobic Respiration..hope this answer helped.
1. Elements are the building block of minerals