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Inside Our Earth — Social Science STD 7 — Question

Rajasthan BoardEnglish MediumSTD 7Social ScienceInside Our Earth5 Marks
Question
Elaborate how rocks are useful to man.
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Answer

  1. Rocks are used as building material for the construction of buildings, bridges etc.
  2. Some rocks as limestone are used in cement industry.
  3. Some rocks are useful due to their minerals content such as ores.
  4. Sedimentary rocks have fossil fuels like coal and petroleum.
  5. Igneous rocks contain some rare and precious stone.
  6. The weathered rock material produces soil that forms the basis for growing food.

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