Vocabulary Review

2. a fire that is burning strongly and out of control on an area of grass or bushes in the countryside
3. fuels, such as gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago
4. land that is used for or is suitable for farming
5. the measured amount of heat in a place or in the body
9. a gas that causes the greenhouse effect, especially carbon dioxide
11. Below water
13. an area often covered with sand or rocks, where there is very little rain and not many plants
14. a vehicle that is driven by an electric motor which draws its current either from storage batteries or from overhead cables

1. not using artificial chemicals in the growing of plants and animals for food and other products
3. a stock of food available for use.
6. relating to, living in, or consisting of water that does not contain salt
7. he business, science, or activity of farming
8. the cutting down of trees in a large area, or the destruction of forests by people
10. the general weather conditions usually found in a particular place
12. to turn from something solid into something soft or liquid, or to cause something to do this