DMSP, a Chemical Produced by Ocean Phytoplankton and Seaweed, Breaks

Multiple Choice

DMSP, a chemical produced by ocean phytoplankton and seaweed, breaks down to produce the gas dimethyl sulfide.The fact that 70 percent of Earth's surface is covered with oceans suggests that the production of dimethyl sulfide is

A) relatively unimportant to the world sulfur cycle.
B) important to the sulfur cycle, but only within the oceans.
C) important only to the biotic portion of the sulfur cycle.
D) an essential part of the world sulfur cycle.
E) important when it breaks down and is taken up by plants.