1 acre (both variants) is equal to the following customary units: 1  66 feet Ã 660 feet (43,560 square feet) 2  10 square chains (1 chain = 66 feet = 22 yards = 4 rods = 100 links) 3  1 acre is approximately 208.71 feet Ã 208.71 feet (a square) 4  4,840 square yards. 5  43,560 square feet. 6  160 perches.
Types of GMOs. GMO varieties exist for crops such as alfalfa, canola, corn, cotton, papaya, rice, soybean, sugar beet, summer squash, and tobacco. Currently, 95% of U.S. soybean and 90% of U.S. corn is genetically modified.
GMO foods have been on the market for nearly 20 years, since 1996. During those years, most of us have eaten GMOs in many foods, from soybeans, beef, dairy products, corn, beets, sugar, cottonseed, and rapeseed, which is used to make canola oil.