1.
finding the best way to reduce the energy needed but maintain the service
2.
using a fuel for both electricity and heat
3.
type of energies that can be used over and over
4.
include coal, oil, natural gas
5.
burning fuels in the presence of oxygen, releasing pollutants
6.
NOx and SOx are removed by combining them with other substances
7.
gas cleanest burning fossil fuel
8.
small bubbles of NG trapped in ice
9.
another name for petroleum
10.
where soil is separated by heat into usable parts
11.
the process of a radioisotope nucleus naturally losing particles and radiation
12.
energy from the nucleus of an atom of radioactive material
13.
type of solar energy that requires a pump or a fan
14.
areas with consistent wind with many turbines
15.
something that doesn't occur continuously
16.
heat from the mantle keeps the ground a constant temperature
17.
any organic materials, including wastes
18.
bacteria to break down animal wastes without the presence of oxygen
19.
most common form of hydro power
20.
use the power of falling water to turn turbines
