C. the fallen trees become food for organisms
Answer:
The process of exhalation occurs due to an elastic recoil of the lung tissue which causes a decrease in volume, resulting in increased pressure in comparison to the atmosphere; thus, air rushes out of the airway. There is no contraction of muscles during exhalation; it is considered a passive process.
Explanation:
I believe that the correct answer is B.oxygen production (mL/hr)
I'm pretty sure tension is your answer.