3
Question
Q. “Oceans have varied and diverse relief features.” Consider the following statements in this regard:
Which of the above statements is/are correct?
Q. “Oceans have varied and diverse relief features.” Consider the following statements in this regard:
Which of the above statements is/are correct?
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Solution
The correct option is C Both 1 and 2
Explanation:
- Statement 1 is correct: The continental shelf is the extended margin of each continent occupied by relatively shallow seas and gulfs. It is the shallowest part of the ocean showing an average gradient of 1° or even less. The shelf typically ends at a very steep slope, called the shelf break. Hence, shelf-break indicated the end of a continental shelf.
- Statement 2 is correct: The width of the continental shelves vary from one ocean to another. The average width of continental shelves is about 80 km. The shelves are almost absent or very narrow along some of the margins like the coasts of Chile, the west coast of Sumatra, etc. On the contrary, the Siberian shelf in the Arctic Ocean, the largest in the world, stretches to 1,500
Explanation:
- Statement 1 is correct: The continental shelf is the extended margin of each continent occupied by relatively shallow seas and gulfs. It is the shallowest part of the ocean showing an average gradient of 1° or even less. The shelf typically ends at a very steep slope, called the shelf break. Hence, shelf-break indicated the end of a continental shelf.
- Statement 2 is correct: The width of the continental shelves vary from one ocean to another. The average width of continental shelves is about 80 km. The shelves are almost absent or very narrow along some of the margins like the coasts of Chile, the west coast of Sumatra, etc. On the contrary, the Siberian shelf in the Arctic Ocean, the largest in the world, stretches to 1,500
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