Q10 of 163 Page 240

If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?

Plants Goat Lion

0.05joule of energy will be passed from plant to lion because only 10% of energy is transferred at each trophic level. So Goat will get 0.5joule of energy from plants and lion will get 0.05joule of energy from goat.


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8

Name two waste materials which can be recycled.

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Name the process by which the volume of solid wastes can be reduced.

 11

State whether the following statement is true or false:

Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level a food chain.

 12

Where does all the energy in living organisms originate from?