Question

question 7 of 10
which activity would best keep the worlds oxygen supply from decreasing?
a. clearing trees from areas near rivers
b. changing jungles into farmland
c. planting trees in forests that have been harmed
d. cutting down forests to sell wood

Explanation:

Trees produce oxygen through photosynthesis. Planting trees in harmed forests helps replenish the tree population, increasing oxygen - producing capacity. Clearing trees (A), changing jungles to farmland (B), and cutting down forests (D) reduce the number of oxygen - producing trees.

Answer:

C. Planting trees in forests that have been harmed