Section Objectives

After you have completed this section, you will be able to:

1. Describe the features and topography of the ocean floor.
2. Identify the physical and chemical properties of ocean water and the factors that affect the properties.
3. Describe the structure and composition of the oceans, including their thermal structure.
4. Explain how ocean currents are formed and compare the movement of ocean surface water to the movement of deep water.
5. Explain the consequences of warmer oceans and the melting of the polar ice caps.
6. Summarize evidence that the oceans play a role in climate change.

Next: Section D, page 3

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