Correct answer: (d) 3 4 1 2
Explanation
- A
4 3 2 1
Option A claims the order is 4, 3, 2, 1, matching Pacific to Molloy Deep, which is incorrect because Molloy Deep is actually the deepest point of the Arctic Ocean.
- B
3 2 1 4
Option B claims the order is 3, 2, 1, 4, matching Pacific to Mariana Trench, Arctic to Puerto Rico Trench, Indian to Sunda Trench, and Atlantic to Molloy Deep, which fails to correctly pair the Arctic and Atlantic oceans with their respective deeps.
- C
1 2 3 4
Option C claims the order is 1, 2, 3, 4, matching Pacific to Sunda Trench, which is factually incorrect as the Sunda Trench belongs to the Indian Ocean.
- D
3 4 1 2
Option D claims the order is 3, 4, 1, 2, correctly matching the Pacific Ocean to the Mariana Trench (3), the Arctic Ocean to the Molloy Deep (4), the Indian Ocean to the Sunda Trench (1), and the Atlantic Ocean to the Puerto Rico Trench (2). This precise geographic alignment makes option (d) the correct official key.
Summary. Official key is (d) matching each major world ocean to its corresponding maximum deepest point. The Pacific Ocean corresponds to the Mariana Trench, the deepest spot on Earth. The Arctic Ocean features the Molloy Deep as its lowest depression. The Indian Ocean contains the Sunda Trench, and the Atlantic Ocean houses the Puerto Rico Trench. Carefully verifying these ocean-trench pairs prevents common identification errors during the examination.