7. What does eutrophication mean?

a. Forests are cleared to make the land available for other purposes
b. People collect, capture, or harvest marine organisms such as coral reefs, fish, sea turtles, and others in a large quantity.
c. The weakening or death of trees caused by Nitrogen Oxides (NOx) and Sulfur dioxide (SO2) that reacts with water, oxygen, and other chemicals in the atmosphere
d. An increase of organic nutrients brought about by the chemicals and garbage thrown into the bodies of water which stimulates the growth of algae and in turn, lessens the available oxygen for other aquatic animals.​