Sample Question Paper 2020-21 (Science)
Assertion: Greater number of individuals are present in lower trophic levels.
Reason: The flow of energy is unidirectional.
- Both A and R are true, and R is correct explanation of the assertion.
- Both A and R are true, but R is not the correct explanation of the assertion.
- A is true, but R is false.
- A is false, but R is true.
Correct Answer: Option(b)