Unit 5 Food

2. A destructive insect or other animal that attacks crops, food, livestock, etc.
4. Plant crops in strips or alleys between shrub or trees
6. A way of growing crops or pasture from year to year without disturbing the soil through tillage
9. Process of eroding by wind,water,or other natural agents
11. farming A system of rearing livestock using intensive methods
12. Deficiency of protein and other key nutrients in diet
13. A fertile soil of clay and sand containing humus.
14. Proteins,carbohydrates, lipids
16. Supply energy for cellular processes
17. The process by which fertile land becomes desert
19. A natural earthy material that is plastic when wet
21. Capable of producing crops; suitable for farming
22. The supply of water to land or crops to help growth, typically by means of channels
23. The organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.

1. Chemical substance produced and released into the environment by an animal,especially a mammal or an insect
3. A substance required in relatively large amounts by living organisms, in particular
5. The activity or business of felling trees and cutting and preparing the timber
7. A person interested in eating food that is locally produced
8. The practice of tilling sloped land along lines of consistent elevation
10. Matter that has come from a recently living organism
15. To graze (land) to excess
18. extreme Scarcity of food.
19. Unit for measuring the amount of energy food provides
20. Supply energy for cellular processes