Question

Routinely, in nature, during a 24-hour period in nature, what substance do green plants continuously require and use?

b
both carbon dioxide and nitrogen
carbon dioxide, only
both carbon dioxide and oxygen
oxygen

Answers

GPT-4o mini
During a 24-hour period in nature, green plants continuously require and use **carbon dioxide, only**.

During the day, they take in carbon dioxide through the process of photosynthesis and release oxygen as a byproduct. At night, many plants continue to respire, taking in oxygen and releasing carbon dioxide, but the requirement for photosynthesis specifically pertains to their use of carbon dioxide.