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13 Cards in this Set

  • Front
  • Back
rock
a solid material made up of one or more minerals
natural resource
any useful material from Earth
soil conservation practices
contour plowing, strip cropping, dam building, terracing
soil
loose material that covers much of the Earth's surface
layers of the earth
crust, mantle, outer core, inner core
mineral
a natural solid found in the Earth's crust
renewable resource
a resource that can be replaced
ore
a mineral or rock that contains enough metal to make mining that metal profitable
fossil fuels
natural gas, coal, petroleum
solar energy
energy from the sun
nonrenewable resource
a natural resource that cannot be replaced
mineral
a solid, found in nature, that has a definiite chemical makeup
conservation
the wise use of natural resources