What is the flatness of abyssal plains associated with?
a. The large amounts of sediment
b. The depth of abyssal plains
c. The pressure above the abyssal plains
d. The lack of sediment
ANS: A
There can be as much as 1000 kilometers of sediment layers on abyssal plains. Most of this sediment is
terrestrial in origins. Information can be found in the section The Topography of Deep-Ocean Basins
Differs from That of the Continental Margins.
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