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  • Which of the following is an organically formed sedimenta...
Multiple choice

Which of the following is an organically formed sedimentary rock?

  1. Gypsum

  2. Mudstone

  3. Limestone

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).

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