Chapter 21 New Alternatives Study Guide
1. Where does geothermal energy come from?
Geothermal energy comes from radioactive decay of elements deep within Earths
2. How can geothermal energy be used to cool a house
1. The vast majority of outdoor air pollution comes from manufacturing and fossil fuel use.
2. The stratospheric ozone layer is important for reducing the amount of UV radiation
hitting the surface of the planet.
3. If the days
Clothes dryer 4000
for 1 hour
If you pay $0.15 per
kWh, how much do
you pay to run
Ocean Tidal Energy
How Does It Work?
Converts energy from ocean tides as they rise and
Three main methods: tidal streams, barrages, and
For all three methods, turbines are placed in tidal