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Earth & Resources
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Question | Answer |
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resouces that can be replaced and regrown in a relatively short time ( a yr. or less: ex. plants, animals & fresh water) | renewable resources |
resources formed over a very long period of time (thousands - millions of yrs.) so they can't be replaced ex. fossil fuels like natural gas, coal, oil & minerals | nonrenewable resources |
we will never run out of it (soil, ocan water, wind & sunlight) | inexhaustible resources |
materials made from pland remains buried deep in the Earth millions of years ago that may now be burned for energy (oil, coal, natural gas | fossil fuels |
solids found in the Earth in rocks (gold, diamonds, aluminu, iron | minerals |
fresh water found underground | groundwater |
an impression left in sedimentary rock by the remains of a dead plant or animal | fossils |
when wind, rain, ice or plant roots slowly break down rocks and wear down Earth's surface | weathering |
when rain, wind, ocean waves or glaciers slowing move soil and rocks | erosion |
large pieces of ice that slowly move downhill because of gravity, eroding forming U-shaped valleys, lakes and other landforms | glaciers |
take thousands of years to do noticeable change and millions of yrs. to form landforms such as caves, canyons and to shape mountains | erosion and weathering |
is formed by the weathering of rock and shells | sand |
is caused by heat/change of temp. | wind |