Multiple choice

Consider the following statements

  1. Continental shelves are wider where high mountains area very close and parallel to the coast.
  2. Continental shelves are formed by prolonged deposition of detritus under sea water in those areas where sea conditions are calm.
  3. Extensive continental margins during the time of negative change of the sea level.
  4. Continental shelves are formed by the submergence of continental margins due to tilting of land towards sea.

Which of the above statements are correct?

  1. 1, 2 and 3

  2. 2, 3 and 4

  3. 1, 3 and 4

  4. 1, 2 and 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statements 2, 3, and 4 are correct: shelves form by prolonged deposition under calm conditions (2), can expand during negative sea level changes (3), and form through submergence due to land tilting (4). Statement 1 is incorrect because shelves are typically narrower where high mountains parallel the coast, not wider. Thus option B (2, 3, 4) is correct.

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