In 1989, The Exxon Valdez, a tanker ship, ran aground and dumped 11 million gallons of oil into an area of Alaskan coastal water. How did this event affect ocean systems negatively? A.) Increased growth of algae in and around the area.

B.) Modification of speed and direction of ocean currents.

C.) Addition of nutrients necessary for growth of aquatic plants.

D.) Death of large numbers of plants and animals.