Natural Resources

2. This fossil fuel is in the form of a liquid.
4. The practice of growing crops and livestock to produce food, fibre, and fuel is called.
6. This fossil fuel is in the form of a rock.
8. Plant or animal material used as fuel to produce electricity or heat.
9. The process of turning raw materials into finished products in a factory.
10. Materials such as minerals, trees, and water that occur naturally and can be used.
13. Careful use of resource that used hot magma or hot, dry rock from below Earth's surface to generate electricity.
14. Conservation method in which old materials are processed to make new ones.

1. Power generated from harnessing wind energy through the use of wind mills and turbines is known as.
3. The impact of a person or community on the environment.
5. The warming of the earth's atmosphere due to build-up of carbon dioxide and methane is known as the.
7. Include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy.
11. Alternative energy source that based on atomic fission.
12. Release of harmful stuff into the environment as a result of human activities is known as.