Earth Science             

Test 4 Fall 2010 

Describe the probable origin of the oceans.

Why the seas are salty?

Discuss where and why some parts of the oceans are more productive (more life) than others.

How do ocean currents influence climate? Give an example.

What causes the tides?

Passive vs active continental margins and features and locations

Seafloor sediment types and origins

Waves formation and structure

Describe ways in which humans influence beach erosion

Discuss beach sediment transport