Question

When energy flows from one trophic level to the other, then its quantity

• A. decreases
• B. increases
• C. does not change
• D. becomes zero

Hint:

According to the 10% rule of energy transfer, only about 10% of the energy is passed to the next trophic level, with the rest being lost as heat.

Answer 1

The Correct Option is A

Step 1: Understand energy transfer in ecosystems.
In an ecosystem, energy is transferred from one trophic level to the next (e.g., from producers to consumers).

Step 2: Identify the nature of energy loss.
During this transfer, a significant amount of energy is lost as heat due to metabolic processes, making the quantity of energy available at higher trophic levels lower.

Step 3: Confirm the correct answer.
Energy decreases as it flows from one trophic level to the next due to energy loss in the form of heat. Therefore, the correct answer is (1).