Question: What does the fishhook cactus release during the day but not during the night.\nOptions:\n- (A) heat\n- (B) Air\n- (C) water\n- (D) carbon monoxide\n- (E) carbon dioxide\n- (F) oxygen\n- (G) Energy.\n- (H) Energy
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Plants release oxygen during the day but not during the night. Another kind of plant is the fishhook cactus. The fishhook cactus releases oxygen during the day but not during the night.
The answer: (F).
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