Question

Question 9 Routinely, in nature, during a 24-hour period in nature, what substance do green plants continuously require and use? both carbon dioxide and nitrogen carbon dioxide, only Oc both carbon dioxide and oxygen oxygen

Answer 1

During a 24-hour period in nature, green plants continuously require and use **carbon dioxide** for the process of photosynthesis. While they also consume oxygen during respiration, this occurs primarily at night when photosynthesis is not happening. Therefore, the correct answer is **carbon dioxide, only**.