Which Of The Following Is Not True Of Deep Ocean Trenches?

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Which of the following is NOT true of deep ocean trenches?

(A) They are long and narrow depressions in the ocean floor.

(B) They are sites where plates plunge back into the mantle.

(C) They are geologically very stable.

(D) They may act as sediment traps.

Answer: C. They are geologically very stable.

Explanation

A deep-ocean trench is long and narrow creases present at the bottom of the ocean.

They are not geologically very stable because volcanic activity and earthquakes are always associated with deep-ocean trenches.

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