The photic zone: This is a continuation . In the ocean, the photic zone is the region where there is sufficient light for photosynthesis to occur. (See Figure 4.7 on the following page.) For marine...

The photic zone: This is a continuation . In the ocean, the photic zone is the region where there is sufficient light for photosynthesis to occur. (See Figure 4.7 on the following page.) For marine phytoplankton, the photic zone extends from the surface of the ocean to a depth where the light intensity is about 1% of surface light. Near Cape Cod, Massachusetts, the depth of the photic

zone is about 16 meters. In waters near Cape Cod, by what percentage does light intensity decrease for each additional meter of depth?