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ch4 earths resources
apprentice hall earth science
Question | Answer |
---|---|
what is reneable energy? | a renewable energy can be replentished over fairly short period of time. |
what is nonrenewable energy? | a energy source that takes millions of years to replentish |
what is a fossil fuel? | a fossil fuel inclueds coal, oil, and natural gas |
what is ore? | a collection of minerals that are concentrated |
what is hydroelectric power? | energy that is collected through natural movements and tides of large waves |
what is geothermal power? | haedness by tapping natural underground reservoirs of streams and hot water |
what is point source pollution? | a pollution that comes from a known and specififc location |
what is nonpoint source pollution? | a pollution thaty cannot be traces back to a specific region |
what is runoff water? | the water that flows over land rather than seeping into the ground, often carrys nonpoint source pollution |
what is conservation? | is the careful use of recources |
what is compost? | is partly decomposed organic materiel that is used as fertalizer |
what is recycling? | the collection and processing of used items so they can be made into new products |
what is the difference between renewable and nonrenewable resources? | Renewable is made over a short span of time and nonrenewable is made in to long of a time span to use forever. |
How are nonmetallic mineral resources used? | Nonmetallic mineral resources are extracted and proccesed either for the nonmetallic minerals that contain or for their physical and chemical properties. |
What is the advantage of using solar energy? | Solar energy has two advantages: the "fuel" is free, and it's non-polluting. |
How do nuclear power plants use nuclear fission to produce energy? | In nuclear fission, the nuclei of heavy atoms such as uranium nuclei then split into smaller nuclei and emit neutrons and heat energy. |
Why is fresh water a vital resource? | Each day, people use fresh water for drinking, cooking, bathing, and growing food. |
What are Earth's inportant land resources? | Earth's land provides soil and forests, as well as mineral and energy resources. |
When were the first laws passed to deal with water pollution? | In 1970, Congress passed the Clean Air Act, the nations most important air pollution law. |
What is involed in protecting land resources? | Protecting land resources involes preventing pollution and managing land resources wisely. |