Question

(iii) What will be the amount of energy available to the third tropic level if

plants have 30,000 J of energy?

(a) 3 J

(b) 300 J

(c) 3000 J

(d) 30,000 J​

Answer 1

Answer:

d)

Explanation:

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Answer 2

Answer:

a. 3 J

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Explanation:

Plants can trap only 1% of the Sun’s energy falling on them. Now, 1% of 30,000 J is 300 J which is the energy available to plants.

The plants are eaten up by deer. According to 10% law, 10% of 300 J, i.e., 30 J of energy will be available to deer as food.

The deer will transfer 10% of its 30 J energy to the tiger. Thus, the food energy available to the tiger will be 10% of 30 J which is 3 J.