Final Exam

4. a farm is an area of land including various structures ,devoted primarily to the practice
9. the state or process of a species family or larger group being or becoming extinct
11. soil salinity is the salt content in the soil
12. fuel-a natural fuel such as coal or gas
13. the science or practice of farming including cultivation of the soil
15. supplying dry land with water by means of ditches
16. gas- natural gas processing plants or fractions are used to purify the raw

1. having little or no rain ; to dry or barren to support vegetation not and conditions
2. a viscous liquid derived from petroleum for use as a fuel
3. the process of eroding or being eroded by the wind, water, or other natural agents
5. a liquid mixture of hydrocarbon that presents in suitable
6. the natural home or environment of an animals , plant or other organisms
7. the state of being clear of trees
8. land covered with grass and others low plants suitable for grazing animals
10. a combustible black or dark brolen rock consisting mainly of carbonized plant
14. open country used for grazing or hunted animals