Question

In the following food chain 20 joule of energy was available to the hawks . How much energy would have been present in the plants ?? PLANTS =} RATS =} SNAKES =} HAWKS .....

Answer 1

20,000 joules (or) 20 kilojoules(Using 10% law)

Answer 2

Heyaa☺
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Food chain ⤵⤵

plants(20000) =》Rats(2000) =》Snakes(200)=》Hawks (20)


▶The energy of food that would have been present in the plants, if hawks gain 20J is 20000J

▶Because,10% of energy is gain by an predator from a prey in a food chain remaining 90% is transfer in the form of heat.

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Hope you understand....✌
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