4.7 Ocean Review

1. What is the deepest part of the ocean?

• ocean trenches
• continental slopes
• continental rise
• abyssal plains

2. Describe the part of the ocean called the continental shelf?

• a region of mountains in the deep ocean
• a region of hills
• a shallow area of sediment near the shore
• a deep canyon

3. Which letter represents a continental rise?

• C
• B
• A
• D

4. The ocean floor—-

• covers less area than the land.
• has the most abundance of life.
• is covered by the same amount of water everywhere.
• has mountains, plains, and ridges like land surfaces.

5. Which letter represents a continental shelf?

• C
• B
• A
• D

6. Ocean water is—

• salt water
• spring water
• brackish water
• fresh water

7. Ocean water is salty and it is saltier in some places than others. Choose all of the events that would make ocean water in an area less salty.

• high winds blowing across the ocean's surface
• input of river water
• melting of sea ice
• an abundance of marine animals
• precipitation of rain

8. What is the difference between freshwater and ocean water?

• fresh water is warmer than ocean water
• fresh water is deeper than ocean water
• ocean water is saltier than fresh water
• ocean water is calmer than freshwater

9. Which movement of ocean water is caused by the moon?

• tides
• waves
• deep currents
• shallow currents

10. What do ocean currents carry that most affects climates?

• salt
• ships
• fish
• heat