Multiple choice

Which of the following is not a sedimentary rock?

  1. Limestone

  2. Marble

  3. Sandstone

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Marble is a metamorphic rock formed from the metamorphism of limestone, not a sedimentary rock. Limestone and sandstone are classic sedimentary rocks formed from compressed sediments. The question asks which is NOT sedimentary, making marble the correct answer.

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