Question

how does deforestation affect the oxygen cycle?
a. it destroys the aquifers that store oxygen.
b. it reduces the amount of oxygen produced.
c. it increases the amount of photosynthesis.
d. it increase the amount of oxygen produced.

Explanation:

Plants produce oxygen through photosynthesis. Deforestation reduces the number of trees (plants). Fewer trees mean less photosynthesis. Less photosynthesis leads to less oxygen production. Aquifers (Option A) store water, not oxygen. Deforestation decreases (not increases as in Option C and D) photosynthesis and thus oxygen production.

Answer:

B. It reduces the amount of oxygen produced.