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formed from decay of ancient forms of life
can't be replaced, made by nature
resource that can't be replaced
getting fresh water from sea water
water that seeps into the ground into spaces between bits of rock and soil
top of water-filled spaces in the ground
mountain range rising about the ocean floor
v-shaped valley below the ocean
breaking down of rocks
carrying away of rocks
a scientist that studies rocks and their formations
mountains formed by compression
mountains formed by tension and shearing
part of water cycle - water comes down onto land
part of water cycle - water goes up into air as water vapor
part of water cycle - water forms clouds in sky
energy derived from the heat in the interior of the earth
coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
the ultimate source of energy.
of or relating to or used in the production of electricity by waterpower
energy that comes from the sun