Which one of the following statements concerning submarine canyons is not true?
A) They extend from the continental shelf to the base of the continental slope.
B) They were cut by streams and rivers during the Pleistocene when sea level had dropped to the base of the continental slope.
C) They channel turbidity currents down the continental slope to deeper waters.
D) They generally connect across the continental shelf to specific river valleys on land.

Question

Quizplus · Accepted Answer

Submarine canyons were not necessarily cut by streams and rivers during the Pleistocene. While some canyons may align with river valleys, suggesting ancient river activity when sea levels were lower, the formation of many submarine canyons is also attributed to processes such as underwater landslides, turbidity currents, and other marine erosional processes.

Which One of the Following Statements Concerning Submarine Canyons Is