Q. Which of the following is considered to be largest oil spill in history?
Answer: Persian Gulf War Oil Spill
Notes: The Persian Gulf War Oil Spill in 1991 is the largest oil spill in history, caused by intentional discharge into the northern Persian Gulf. The Deepwater Horizon Oil Spill in 2010 is the largest accidental spill, occurring in the Gulf of Mexico. The Ixtoc 1 Oil Spill in 1979 resulted from an explosion, releasing millions of gallons into Mexico’s Bay of Campeche. Also in 1979, the Atlantic Empress Oil Spill, the largest tanker spill, impacted Trinidad and Tobago.