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.
GloFish, the first genetically modified animal to be sold as a pet. A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques (i.e., a genetically engineered organism). GMOs are used to produce many medications and genetically modified foods and are widely used in scientific research and the production of other goods.