What do trees release during the day but not at night?\nOptions:\n- (A) Energy\n- (B) water\n- (C) He\n- (D) Ce\n- (E) chemicals\n- (F) Energy.\n- (G) heat\n- (H) oxygen
Step-by-step reasoning process below:
(H)
Plants release oxygen during the day but not during the night.

All plants are trees.

Trees release oxygen during the day but not at night.

.

So, the answer is (H)