fossil fuels
landfill
dam
garbage
geothermal
turbines
oil
sewage
solar
diesel
noise pollution
hydroelectric
biomass
waste
renewable
- Aircraft, traffic and construction all produce .
- The largest in the world is across China's Yangtze River. It's used to generate .
- The engine was originally designed to run on vegetable oil and not .
- panels and wind both make use of of energy.
- The truck takes all our trash to a local .
- The Exxon Valdez was a huge tanker that hit a reef in Alaska and caused one of the largest spills in history.
- treatment plants avoid human from being discharged directly into rivers, lakes and oceans.
- energy comes from under the ground. comes from organic sources.
