Figure 40.2 shows a generalized cross section of the marine environment with various zones labeled with letters.Choose the number that best answers the question(s).
Figure 40.2
-Which zone produces the most global oxygen?
A)1
B)2
C)3
D)4

Question

Figure 40.2 shows a generalized cross section of the marine environment with various zones labeled with letters.Choose the number that best answers the question(s).
  Figure 40.2
-Which zone produces the most global oxygen?
A)1 
B)2 
C)3 
D)4

Quizplus · Accepted Answer

The zone labeled as "2" (euphotic zone) produces the most global oxygen because it is the zone where photosynthesis occurs due to the presence of sunlight.

Figure 402 Shows a Generalized Cross Section of the Marine Environment