| A | B |
|---|
| renewable resource | can be replaced in nature at a rate close to the rate of use |
| non-renewable resource | 93% of the world's energy comes from this |
| fossil fuels | coal, petroleum, natural gas |
| hydroelectric power | the disadvantage to this form of energy is that it disturbs ecosystems |
| wind power | disadvantage is that this form of energy is not very efficient and takes up a lot of land |
| geothermal energy | using heat from the Earth's interior |
| solar power | disadvantage is that this form of energy is that it doesn't work in all climates or bad weather |
| nuclear power | disadvantage of this form of energy is that waste produced is highly toxic |
