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Q: Which of the following is a sedimentary rock ?
  • A. shale
  • B. granite
  • C. slate
  • D. marble
Correct Answer: Option A - Shale is a group of small grained laminated sedimentary rock, consisting of silt and clay sized Particle. It is the most abundant of the sedimentary rocks, accounting roughly 70% of this rock type in the crust of the earth.
A. Shale is a group of small grained laminated sedimentary rock, consisting of silt and clay sized Particle. It is the most abundant of the sedimentary rocks, accounting roughly 70% of this rock type in the crust of the earth.

Explanations:

Shale is a group of small grained laminated sedimentary rock, consisting of silt and clay sized Particle. It is the most abundant of the sedimentary rocks, accounting roughly 70% of this rock type in the crust of the earth.