waste material or things that are no longer wanted or needed

a liquid obtained from petroleum, used especially as a fuel for cars and other vehicles

a thick liquid that comes from petroleum, used as a fuel and for making parts of machines move easily

a type of animal or plant that might stop existing because there are only a few of that type alive

the air, water, and land in or on which people, animals, and plants live

the number of vehicles moving along roads, or the amount of aircraft, trains, or ships moving along a route

to use too much of something or use something badly when there is a limited amount of it

to make an area or substance, usually air, water, or soil, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals

to make a person or place clean and tidy

a building or set of buildings where large amounts of goods are made using machines

to sort and collect rubbish in order to treat it and produce useful materials that can be used again

a living thing that grows in earth or in water