History of Agriculture

2. free trade agreement between the United States, Canada and Mexico
4. British civilian organization created during World War II so women could work in agriculture
10. large increase in crop production in developing countries achieved by the use of fertilizers, pesticides and high-yield crop varieties
12. treaty between Canada, Mexico and the United States which eliminated most tariffs between the counties
13. action of searching out and publicizing scandalous information about famous people in an underhanded way
14. farm implement consisting of a strong blade at the end of a beam, usually hitched to a draft team or motor vehicle and used for breaking up soil and cutting furrows in preparation for sowing

1. vegetable garden, especially a home garden, planted to increase food production during a war
3. 19th-century doctrine or belief stating the expansion of the U.S. throughout the American continents was both justified and inevitable
5. colorless, volatile and flammable liquid which is produced by the natural fermentation of sugars
6. estate on which crops such as coffee, sugar and tobacco were cultivated by resident labor
7. act or means of sealing off a place to prevent foods or people from entering or leaving
8. information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view
9. ancient region of southwestern Asia in present-day Iraq, lying between the Tigris and Euphrates rivers
11. area of Oklahoma, New Mexico, Kansas, Colorado and Texas affected by severe soil erosion, caused by drought and relentless windstorms, in the 1930s