Lesson 2 Earth's Resources
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| resource | anything that is needed by humans to survive
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| soil | layer of loose disintegrated rock, organic matter, living organisms, air, and water in which rooted plants, including agricultural plants grow
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| minerals | naturally forming inorganic substances with a crystalline structure of which rocks are made
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| energy resources | these include fossil fuels, flowing water, wind, solar energy, and geothermal energy
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| solar energy | energy derived from the sun in the form of solar radiation
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| natural resources | These include air, water, soil, minerals, and energy
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| renewable resources | resources having an endless supply (wind power, water power, plant or tree products because they grow relatively quickly)
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| nonrenewable resources | resources having a limited supply (coal, natural gas, soil, minerals, oil, etc)
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| geothermal energy | a form of energy obtained from within the earth, originating in its core; also, energy produced by extracting the earth's internal heat
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| ozone layer | the layer of the upper atmosphere where most atmospheric ozone is concentrated, from about 8 to 30 miles (12 to 48 km) above the earth, with the maximum ozone concentration occurring at an altitude of about 12 miles (19 km)
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| conservation | any action taken to limit the consumption, overuse, and pollution of the natural environment
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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