Question

The world’s largest trench the Mariana trench is located in which country?
A) Atlantic ocean
B) Arctic ocean
C) Indian ocean
D) Pacific ocean

Answer 1

Hint:The topographic depressions of the seafloor are oceanic trenches, relatively narrow in width, but very long.The most profound parts of the ocean floor are these oceanographic characteristics. Oceanic trenches are a distinctive morphological characteristic of the boundaries of the convergent plate along which lithospheric plates shift at rates varying from a few millimeters to over ten centimeters per year towards each other.A trench marks the spot where the flexed, subducting slab starts to descend under another lithospheric slab.

Complete answer:
Option A) Atlantic ocean, is the incorrect answer. After the Puerto Rico Trench, the deepest trench in the Atlantic Ocean, the South Sandwich Trench is at a depth of about 8.42 km, described as Meteor Deep and runs for over 956 km, making it one of the world's most noticeable trenches.
Option B) The Arctic Ocean is the incorrect answer. The Arctic Ocean's Eurasian Basin is 5,450 meters (17,881 feet) deep.
Option C) Indian ocean, is the incorrect answer. The Deep Dive Site was measured to be 7,192 meters/23,596 feet, the verified deepest point in the Indian Ocean.
Option D) Pacific ocean. The Mariana Trench or Marianas Trench lies about 200 kilometers (124 mi) east of the Mariana Islands in the western Pacific Ocean; it is the deepest ocean trench on Earth. It measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width and is crescent-shaped. At the southern end of a small slot-shaped valley on its floor, known as the Challenger Deep, the maximum known depth is 10,984 meters (36,037 ft) (± 25 meters [82 ft]) (6.825 miles).

Hence the correct answer is option D.

Note:The Pacific Ocean was named in the 16th century by the explorer Ferdinand Magellan. The Pacific is by far the largest of the world's ocean basins, covering nearly 59 million square miles and holding more than half of the free water on Earth.