12. Which of the following statements is true? A. Animals excrete waste and releases nitrogen to soil that can be readily used by plants. B. Nodules of legumes are the usual site of nitrogen fixation C. Oxygen is released as a product of respiration. D. The atmosphere is composed mainly of oxygen and hydrogen
Answers & Comments
Answer:
leter c po
Explanation:
kse air is Oxygen that can make alive the plant
Tama po yan