Oceanography Quiz 1 Review

How much of Earth's surface is covered by ocean waters?

• 71%
• 75%
• 55%
• 80%

Where does most of the salt in the ocean come from?

• tropical heat
• rain
• rivers and streams
• volcanic activity

The _____ extends from the edge of the continental shelf down to the ocean floor. 

• abyssal plain
• continental slope
• mid-ocean ridge
• trench

______ are flat areas of sea floor formed when valleys are filled in with sediment. 

• mid ocean ridges
• continental shelves
• abyssal plains
• continental slopes

The place where new ocean floor forms is called the...

• mid ocean ridge
• abyssal plain
• trench
• continental shelf

____ are formed on the sea floor when one crustal plate is shoved under another crustal plate. 

• continental shelves
• trenches
• mid ocean ridges
• abyssal plains

The continental slope is located at the end of the...

• shoreline
• continental shelf
• mid ocean ridge
• abyssal plain

Gently sloping, shallow area of the ocean floor at the edge of a continent.

• continental shelf
• continental slope
• abyssal plain
• seamount

Range of underwater mountains that winds throughout the ocean

• abyssal plain
• seamount
• mid-ocean ridge
• volcanic island

Steep incline beyond the continental shelf

• continental shelf
• fault-block mountain
• mid-ocean ridge
• continental slope