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

a chemical used for killing pests, especially insects

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

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

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

a synonym of 'produce'

fish, and other creatures living in the water

to break down something into smaller and simpler parts

an illness usually caused by eating food that contains harmful bacteria

leave trash in a place

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