Amsterdam-St. Paul Plateau is located in which one of the following oceanic regions?

The Ninety East Ridge (90° East Ridge) is located in which of the following oceans?

Which one of the following is the deepest oceanic trench?

In which one of the following oceans Diamantina Trench is situated?

Which one of the following Oceanic currents is not associated with the Pacific Ocean?

Telegraphic Plateau is an underwater feature located in which part of the ocean?