'Mohs scale' is used to indicate the

Correct option is C

Correct Answer:C. Degree of hardness of minerals

• The Mohs scale of mineral hardness is a scale used to measure the hardness of minerals.

• Developed by Friedrich Mohs in 1812, it ranks minerals on a scale from 1 to 10, with 1 being the softest (Talc) and 10 being the hardest (Diamond).

• The scale is based on the ability of a harder mineral to scratch a softer one.

• Examples:

  • Talc (softest) - Hardness 1

  • Diamond (hardest) - Hardness 10

• Mohs scale is useful in identifying and comparing minerals in the field of geology.