The two principal sources of artificial oil spills are tanker accidents and

Question

Quizplus · Accepted Answer

Tanker accidents can result in large spills of crude oil or refined petroleum products in offshore locations. Similarly, spills can occur during offshore drilling activity, which is also a major source of artificial oil spills. Refinery accidents and spills from pipelines on land are also sources of oil spills, but they are not as significant as offshore drilling and tanker accidents. Spills from onshore drilling activity can occur, but they are less frequent than offshore spills. Therefore, the best choice is C, spills from offshore drilling activity, because they and tanker accidents are the primary sources of artificial oil spills.

The Two Principal Sources of Artificial Oil Spills Are Tanker