3-12

What page does Chapter 2 lesson 4 start on? (2-4)

• 68

• 69

• 70

What are the two major aquatic ecosystems? (on page 68)

• freshwater

• marine (or saltwater)

• deserts

A ______ is found where the freshwater of a river meets the salt water of an ocean.

• estuary

• intertidal zone

• neritic zone

Located on the shore between the highest high-tide line and the lowest low-tide line is the

• estuary

• intertidal zone

• neritic zone

The region of shallow water found below the low-tide line and extending over the continental shelf.

• estuary

• intertidal zone

• neritic zone