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chapter 4
prentice hall earth science
| Term | Definition |
|---|---|
| Renewable resource | Can be replenished over a fairly short time span |
| Nonrenewable resource | Takes millions of years to form and accumulate |
| Fossil fuels | A fossil fuel is any hydrocarbon that may be used as a source of energy |
| Nonmetallic minerals | Nonmetallic minerals are extracted and processed either for the nonmetallic elements they contain or for their phyical and chemical properties |
| Wind energy | Wind energy is energy created by giant wind turbines |
| Point source pollution | Point source pollution is pollution that comes from a known place |
| Nonpoint source pollution | Nonpoint source pollution is pollution that comes from an unknown place. |
| Runoff | the water that flows over land rather than seeping into the ground |
| Global warming | Unnatural warming of the lower atmosphere |
| What is freshwater pollution? | Freshwater pollution is freshwater that is polluted by runoffs and litering |
| What is conservation? | Conservation is the careful use of resources |
| What is recycling? | Recycling is melting things down and reusing them to make other things |
| What is compost? | Compost is partly decomposed organic material that is used as fertilizer |
| When were the first laws passed to deal with water pollution? | 1970 |
| Why is the chemical composition of the atmosphere important? | Its important because the chemical composition helps maintain life on earth. |
| Geothermal energy | Geothermal energy is used directly for heating and to turn turbines to generate electric power. |
| Hydroelectric energy | Hydroelectric energy is harnessed by falling water |
| What is the advantage of solar energy? | The advantage of solar energy is that its free energy |
| Which energy resources are fossil fuels? | Some fossil fuels are coal, oil, and natural gas |
| Tar sands | Tar sands are usually mixtures of clay and sand combined with water and varying amounts of bitumen |
Created by:
gabriel.murphy
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