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VAIBHAVI B JHA from APEEJAY SCHOOL KHARGHAR, NAVI MUMBAI

Subject :NSO Class : Class 2

Which among the following is the hardest mineral?

A Graphite
B Diamond
C Quartz
D Talc

Ans 1:

VAIBHAVI B JHA from APEEJAY SCHOOL KHARGHAR, NAVI MUMBAI

Class : Class 5

Guru subramanya mahati from Delhi public school, Hyderabad

Class : Class 2

Ans= Diamond