Q11 of 163 Page 240

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.

False; Pants absorb only 1% of sun energy. 10% of this one percent energy absorbed by the plants is transferred at each trophic level.


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9

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

 10

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

 12

Where does all the energy in living organisms originate from?

 13

Why are there rarely more than five links (or five organisms) in a food chain?