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AARNA Kapse from The swaminarayan school, Nagpur
Subject :NSO    Class : Class 3

Select the correct statement.

A The tiny grains that make up a rock are called minerals and there are always more than one mineral in a rock.
B Sandstone is the hardest rock while granite is the softest rock.
C Rocks break under the effect of sun, wind, water etc. and form humus that makes soil productive.
D Talc is the softest mineral while diamond is the hardest mineral.


Ans 1:

samarth kshatriya from delhi public school,bhilai, bhilai
Class : Class 3
c

Ans 2:

Hargun Wadhwa from Manav Rachna International School, Sector 46 Gurgaon
Class : Class 4
option c is the correct option because granite and marble are hard to make the floor and cannot break easily but chalk can break easily.

Ans 3:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7

Ans 4:

Arihant Medhi from Dps Barasat, Kolkata
Class : Class 7
The correct answer is D

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