Front

Rubbish

Back

worthless material that is to be disposed of

Front

Air Pollution

Back

the contamination of the atmosphere by the introduction of pollutants from human and natural sources

Front

Water Pollution

Back

the addition of any substance that has a negative effect on water or the living things that depend on the water

Front

Deforestation

Back

the action of clearing a wide area of trees

Front

Energy Waste

Back

the act of using more energy than is needed

Front

Endangered Species

Back

A species whose numbers are so small that the species is at risk of extinction.