Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Natural resources |
Materials in the environment that are useful to people |
|
|
Fossil fuels |
Fuels formed from the decaying remains of plants and animals that lived millions of years ago |
|
|
Renewable resources |
Natural resources that nature can produce again, such add trees, plants, animals, water, oxygen, and soil |
|
|
Alternative energy sources |
Sources of energy that do not come from fossil fuels |
|
|
Geothermal energy |
Heat energy naturally produced within earth |
|
|
Hydroelectric power |
Electricity made from the energy of moving water in a dam |
|
|
Conservation |
The practice of decreasing the use of natural resources in order to save them |
|
|
Biofuels |
Fuels made from organic matter |
|
|
Inexhaustible resources |
Resources that can be used and never be used up such as solar energy and wind |
