Chapter 51.6, Problem 3SB

Summary Introduction

To review:

The marine areas that receive energy input mainly from sunlight.

Introduction:

On the basis of the presence of water and land, distance from the shore, and depth of the layers, the ocean is divided into several layers. The organisms further, in the marine enviroenment are distributed acfording to the penetration level of the sunlight. The upper layer receives sufficient amount of sunlight.