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erosion movement of soil by wind and water
groundwater pollution when pollutants seep into particles of rock or soil and collects in aquifers
smog created when sunlight reacts with pollutants in the air
recycle reuse of a resource that requires changing or reprocessing the resource
ozone depletion thinning of Earth's protective ozone layer
reuse using items more than once or using for another purpose
acid precipitation mist, fog, rain, snow, sleet, or hail with a pH below 5.6
reduce using fewer natural resources
greenhouse effect Earth's atmosphere traps heat from the sun; too much can cause global warming
surface water pollution chemical pesticides, raw sewage, fertilizer, and garbage that wash into rivers, streams, lakes, etc.
renewable resource natural resources that are constantly recycled or being replaced
nonrenewable resource natural resources that are used up more quickly than they can be replaced
petroleum a fossil fuel formed mainly from the remains of microscopic sized marine organisms buried beneath the ground
nuclear power kind of power produced when atomic nuclei from uranium are split apart in a fission reaction
hydroelectric power kind of power produced when the energy of flowing water turns a turbine in a generator
geothermal power kind of power produced from the heat energy contained in the Earth's crust
fossil fuels most of the energy we use; formed in Earth's crust over hundreds of millions of years
photovoltaic cell kind of cell used to turn sunlight into electricity
solar power energy from the sun that is converted to electricity or in materials that retain heat
hazardous waste waste materials that are very harmful to human health or poisonous to living organisms
natural resources parts of the environment that are useful or necessary for the survival of living organisms
pollutant substance that contaminates the environment
The 3 R's of Conservation reduce, reuse, recycle
Created by: MsHollinger