The author states that offshore canyons and guyots have which of the following characteristics in

The author states that offshore canyons and guyots have which of the following characteristics in common?

A. Both are found on the ocean floor near continental shelves. 

B. Both present oceanographers with a mystery. 

C. Both were formed by volcanic activity. 

D. Both were, at one time, above the surface of the sea.

Trả lời

Chọn B