Where are abyssal plains most common?
a. Atlantic Ocean
b. Pacific Ocean
c. Indian Ocean
d. Southern Ocean
ANS: A
The abundance of abyssal plains is inversely related to the geological activity of an area. The Pacific
Ocean is known to have active margins while the Atlantic is characterized by passive margins.
Information can be found in the section The Topography of Deep-Ocean Basins Differs from That of
the Continental Margins.
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