Natural Resources

Front

Anything occurring naturally in the environment that humans use.

Back

Natural Resource

Front

resources that cannot be replaced; there may be a finite amount of the resource on earth and there is no way to make more, or it takes very long periods of time for the resource to form.

Back

Nonrenewable Resources

Front

energy rich substances made from the preserved remains of organisms. 

Back

Fossil Fuels

Front

 formed from the remains of plants that died long ago in and around swampy areas. 

Back

Coal

Front

partially altered plant material; very smoky when burned; low energy.

Back

Peat

Front

soft, brown coal; moderate energy.

Back

Lignite

Front

soft, black coal; major coal used in power generation and industry; high energy.

Back

Bituminous

Front

hard, black coal; used in industry; highest energy.

Back

Anthracite

Front

 the natural stress state existing within the Earth’s crust and rock masses before any human intervention

Back

Geostress

Front

 the temperature of the Earth’s crust and its variations with depth; influenced by the Earth’s internal heat and external factors like the sun and weather. 

Back

Geotemperature