fish, and other creatures living in the water

coughing, asthma, and lung cancer are ...

a synonym of 'produce'

the process by which soil is gradually removed from the surface of the earth by the action of the rain, sea, or wind

gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago

the problem of the slow steady rise in temperature of the earth’s atmosphere, caused by an increase of gases such as carbon dioxide in the air surrounding the earth, which trap the heat of the sun

a substance added to soil to make plants grow more successfully

materials produced as a result of industrial activity, including solid rocks, chemicals, plastics, and other harmful substances

leave trash in a place

the gas or steam that is produced when the engine of a vehicle is running

the act of cutting down or burning the trees in an area

Carbon dioxide and Sulphur dioxide are called ...