Food & Agriculture

2. The loss of fertile soil when it is blown away by wind or washed away by water is called___________________.
6. The raising of aquatic organisms for human use and consumption is called ___________________.
7. In farming, a(n) ____________________ is any organism that occurs where it is not wanted, or in large enough numbers to cause economic damage.
10. The accumulation of salts in the soil, which can be caused by irrigation and low rainfall, is called ___________________.
11. Animal species bred and managed for human use are referred to as ____________________.
12. Soil forms when rock is broken down into smaller fragments by wind, water, and __________________ .(2 words)
13. Soil-retaining terraces and contour plowing are both examples of _________________________. (2 words)
15. The upper layer of soil consisting of rock particles, water, air, and organic matter is the __________________.

1. A(n) ____________________ is a prolonged period during which no rain falls in a particular region.
3. Goats, sheep, cattle and other ____________________ are cud-chewing mammals with multi-chambered stomachs.
4. The technology of _________________________ allows desirable traits in crop plants to be transferred through the direct manipulation of genes for those traits.(2 words)
5. Agriculture that is ____________________ would likely depend on mules for plowing, fertilizer such as manure, and irrigation through ditches.
8. The health problem caused by not eating enough necessary nutrients is known as ___________________.
9. More energy, water, and land are needed to produce a gram of ____________________ than to produce a gram of food from plants.
14. Cattle, goats, pigs, sheep, and chickens are all types of ____________________.