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

Name the group of chemical compounds which damages the ozone layer.

Name two waste materials which can be recycled.

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

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.