renewable resources
what is a renewable resources
resources that are constantly available and can be replaced
define a fossil fuel
what is a pollutant
waste build up
how does wind power work?
wind moves a wind turbine and the moving turbine generates electricity
how is air recycled
plants take in co2 and release o2
humans take in 02 and release co2
how does fossil fuels create energy
burning of fossil fuels releases heat and smoke to power a turbine (fan)
how are sea animals affected by solid waste
-can mistake plastic bags as food, they can get caught or injured in waste
what is hydroelectric energy
energy powered by moving water
ex. dam
describe the recycling of water ( 3 steps )
evaporates, condenses and then precipitates
what are the three types of fossil fuels
natural gas, oil, and coal
what is land pollution stored in
sanitary landfill
burning of once living material (ex. wood)
what form of nitrogen do organisms need to use, what do they use it for?
solids, to create proteins
in what form is oil used?
gasoline, jet fuel, and kerosine
-contaminates drinking water and kills ocean life
what is a pro and con of biomass energy
pro: cheap
con: is used up very fast
how does nitrogen gas become solid
bacteria on plants
In what form is natural gas used
- heating, electricity, propane
the burning of fossil fuels causes what kind of pollution
air pollution
what is geothermal energy? what is a pro/con
energy harnessed from the heat in the earth
- pro: free, very effective
- con: very difficult to get to the inner portion of the earth