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Environment
The Human Impact on the Environment -15.1 - 15.4 - Integrated Science I Luetje
Question | Answer |
---|---|
environment | everything that surrounds a living thing |
pollution | anything that harms the environment |
List four substances that cycle through the environment. | water carbon dioxide oxygen nitrogen |
pollutants | harmful substances |
What substance do animals take in when they breathe in? | oxygen |
What substance do animals take in when they breathe out? | carbon dioxide |
How does nitrogen get from the air into compounds in the soil? | When plants and animals die, the nitrogen compounds are broken down by different bacteria. |
natural resources | materials from the earth that are used by living things |
What are renewable resources? | natural resources that can be reused or replaced |
What are nonrenewable resources? | natural resources that are not easily replaced by nature or by human effort |
conservation | the wise use of natural resources |
Examples of renewable resources: | air water soil living things |
Examples of nonrenewable resources: | oil coal natural gas |
fossil fuels | oil, coal, and natural gas |
potential energy | stored energy |
hydroelectric power | electrical energy produced from moving water |
kinetic energy | energy of motion |
nuclear energy | energy produced by splitting or combining atoms |
hydroelectric power plant | place where moving water produces electricity |
turbine | drives an electric generator in a hydroelectric plant |
radiation | dangerous energy produced in nuclear reactors |
What is one problem with using nuclear power? | radio active waste/radiation |
Why is it important to conserve fossil fuels? | they are nonrenewable resources because they can take millions of years to form. once fossil fuels are used up they are basically gone forever. |
What are two advantages of producing electricity in hydroelectric plants? | does not pollute the air and is renewable |
Solar energy is from the _________. | sun |
Energy produced form moving air is ______ energy. | wind |
Geothermal energy comes from heat inside ______. | the earth |
Geothermal energy warms ____________. | groundwater |
Tidal energy can be used only near a __________ where tides are very high and very low. | shoreline |
____________ convert sunlight into energy. | Solar cells |
Energy produced by rising and falling tides is __________ energy. | tidal |
Wind energy is a _____________ resource. | renewable |