| A | B |
| renewable resource | natural resource that is depleted at a rate slower than the rate at which it regenerates |
| non-renewable resource | resource for which there are no ways to replenish the supply |
| fossil fuels | also known as mineral fuels, they are hydrocarbon containing natural resources such as coal, petroleum and natural gas |
| solar energy | harnessing the energy produced by sunlight |
| wind power | using the kinetic energy of the wind or wind turbines to extract the wind's energy |
| hydropower | energy obtained from flowing water |
| geothermal energy | electricity generated by utilizing naturally occurring geological heat sources |
| nuclear energy | energy released from the nucleus of an atom creating a nuclear reaction |
| greenhouse gasses | gaseous components of the atmospher including carbon dioxide and ozone |
| global warming | an increase in the average temperature of the Earth's atmospher and oceans |