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.
So basically, a GMO (genetically modified organism) is a plant, crop, food or something related to those things that was created with biotechnology. There are several kinds of GMOs, all of them involve taking a gene from one species and putting it into another unrelated species.