Unit 1 Natural Resources: Vocabulary

any material from Earth that is used by people

a natural resource that can be replaced at the same rate that it is consumed

a natural resource that is used much faster than it can be replaced

an energy resource made from the remains of plants and animals that lived long ago

a solid fossil fuel formed underground from buried, decomposed plant material

a liquid fossil fuel made up of a mixture of hydrocarbons

a fossil fuel that is a mixture of hydrocarbons that are in the form of gases

energy that is released when atoms come together or break apart

using things that have been thrown away to make new objects

electricity that is produced by windmills

heat and light that Earth gets from the sun

electricity produced from moving water

organic matter that can be a source of energy

energy produced by the heat within the Earth

energy produced by the movement of water caused by tides or waves

using a resource over and over in the same form

to use less of a resource

rain, sleet, or snow that contains a lot of acids caused by air pollution

the gradual increase in global temperatures

a natural process in which gases in the atmosphere trap heat

the action of clearing a large area of trees

able to be maintained at a certain rate or level