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Question
Which of the following scales is used for estimating the hardness of stones?
iRFkj dh dBksjrk dk vuqeku yxkus ds fy, fdl iSekus dk mi;ksx fd;k tkrk gSA
A.
Richter
B.
Mohs
C.
Mohr's
D.
Abram's
Answer ( Option B)

Mohs

Solution

Mohs Scale is used to Rank gemstones and minerals according to hardness. It is developed by german mineralogist fried rich moh in 1812.
On the scale 1 is represent very soft. 
& 10 is represent very hard.

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