नए अध्ययनों के अनुसार चांद – McqOptions

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1.	नए अध्ययनों के अनुसार चांद कितने अरब वर्ष पुराना है?
A.	4.51 अरब
B.	1 अरब
C.	10 करोड़
D.	5 करोड़
Answer» B. 1 अरब

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