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Q: Which of the following is NOT a common type of stone used as a building material?
  • A. Gypsum
  • B. Granite
  • C. Limestone
  • D. Marble
Correct Answer: Option A - Gypsum is not a type of stone, used in building materials. Granite– It is used in ornamental columns, sea walls, railway ballast, building block. GS = 2.6-2.9 Marble– It is used in carving and decoration work, steps, table, slabs. GS = 2.72
A. Gypsum is not a type of stone, used in building materials. Granite– It is used in ornamental columns, sea walls, railway ballast, building block. GS = 2.6-2.9 Marble– It is used in carving and decoration work, steps, table, slabs. GS = 2.72

Explanations:

Gypsum is not a type of stone, used in building materials. Granite– It is used in ornamental columns, sea walls, railway ballast, building block. GS = 2.6-2.9 Marble– It is used in carving and decoration work, steps, table, slabs. GS = 2.72