Excessive nutrients in the chesapeake bay foster the growth of algae, which robs the aquatic life of sunlight and oxygen. the main reason for the overabundance of nutrients is an increase in
a) fishing.
b) climate change.
c) the temperature.
d) human population.

The correct option is human population, D. Excessive nutrients in the Chesapeake Bay is as a result of nutrients run off in urban areas where fertilizers are used for one purpose or the other. For instance, using fertilizers for lawns. All of these nutrients find their way into the Chesapeake Bay when rain fall and cause dense growth of algae. The process is called eutrophication.