What release oxygen during the day but not at night?
Options:
- (A) sea anenomes
- (B) Organic compounds
- (C) orange trees
- (D) coral
- (E) power stations
- (F) humans
- (G) swamp vegetation
- (H) important habitats
Hmmm, let me think. I don't want to be wrong, so I got to be careful.
Plants release oxygen during the day but not during the night. All orange trees are plants. Orange trees release oxygen during the day but not at night. The answer: (C).