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17 Cards in this Set

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wetlands
lowland area, such as a marshy or swampy place, that holds moisture
anthracite
hard coal
loam
A brown soil made up of sand, silt, clay, and organic matter.
mouth
part of a river where its water empties into another body of water
headwaters
the source of a stream
fossil fuels
resources formed millions of years ago from remians of plants and animals under the earth's crust
mineral resource
any useful substance found in the earth that has NOT been formed by plant and animal remains
source
the beginning of a stream of water
reservoir
an artificial lake where water is stored and collected for a water supply
non-renewable
something that cannot be extended, renewed, or replaced
natural gas
gas coming from the earth's crust through natural openings or bored wells
tributary
a smaller stream flowing into a larger stream, river, or lake
watershed
a geographic area or region into which all the creeks and tributaries flow into a larger river
natural resource
Raw materials that exist in a natural state and are used to produce products, or finished goods.
petroleum
any oily flammable liquid obtained from wells drilled in the ground and refined into gasoline and fuel oils
bituminous
soft coal
forest
a large growth of trees and underbrush