Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

Exercise 22

What percentage of the earth's surface is covered with water? What is an aquatic life zone? Distinguish between a saltwater (marine) life zone and a freshwater life zone. Distinguish between the coastal zone and the open sea. Define and distinguish between an estuary and a coastal wetland and explain why they have high net primary productivities.