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GK MCQs Section
Q. Which among the following statements about sedimentary rocks is/are correctly matched?
  1. Mechanically formed — chalk, limestone, coal.
  2. Organically formed — sandstone, conglomerate, limestone.
  3. Chemically formed —limestone, potash.
Select the correct code among the options given below:
Answer: Only 3
Notes: Organically formed - chalk, limestone, coal, geyserite
Mechanically formed - sandstone, conglomerate, limestone, shale
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