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Q: From the engineering point of view, sandstone and limestones belong to which types of rocks? (a) Sedimentary rocks (b) Metamorphic rocks (c) Intrusive rock (d) Igneous rock
  • A. Sedimentary rocks
  • B. Metamorphic rocks
  • C. Intrusive rock
  • D. Igneous rock
Correct Answer: Option A - Limestone and Sandstone belongs to sedimentary rock. Sedimentary rock are formed by weathering action of existing rock. Example → Mudstone → Sandstone → Limestone → Lignite → Gypsum → Sand Special Note: metamorphism of Limestone → Marble metamorphism of Sandstone → Quartz.
A. Limestone and Sandstone belongs to sedimentary rock. Sedimentary rock are formed by weathering action of existing rock. Example → Mudstone → Sandstone → Limestone → Lignite → Gypsum → Sand Special Note: metamorphism of Limestone → Marble metamorphism of Sandstone → Quartz.

Explanations:

Limestone and Sandstone belongs to sedimentary rock. Sedimentary rock are formed by weathering action of existing rock. Example → Mudstone → Sandstone → Limestone → Lignite → Gypsum → Sand Special Note: metamorphism of Limestone → Marble metamorphism of Sandstone → Quartz.