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OCEANS: TRUE OR FALSE?

Name___________________

DIRECTIONS: How much do you know about oceans and ocean life? Read each statement below. Circle True if you think the statement tells something that is true about oceans. Circle False if you think the statement is false.

1. Oceans cover more than two-thirds of Earth's surface.
   True      False

2. Oceans contain more than 90 percent of Earth's water.
   True      False

3. Ten percent of ocean water is fresh water.
   True      False

4. The United States has the longest coastline of any country.
   True      False

5. The deepest spot in the ocean is the Mariana Trench.
   True      False

6. The area of the Pacific Ocean is more than the area of all of Earth's land.
   True      False

7. The blue whale is the largest known mammal to have ever lived on land or in water.
   True      False

8. A tsunami is a series of waves caused by an underwater disturbance, usually an earthquake.
   True      False

9. The average depth of the ocean is about 1 kilometer.
   True      False

10. Most volcanic activity occurs in the oceans.
    True      False

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