Which of the following substances is not recycled in an ecosystem? by Sunday | May 14 | Biology WAEC | 0 comments A. Carbon B. Energy C. Water D. Nitrogen Correct Answer: Option B B. Energy Users Also Read These:Which of the following soil fertility improvement…The substances recycled in the soil by the…Which of the following processes is not due to…Which of the following substances when lost from the…Which of the following substances is not usually…