पृथ्वी की उम्र क्या है ? – McqOptions

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1.	पृथ्वी की उम्र क्या है ?
A.	5500000000 वर्ष
B.	4500000000 वर्ष
C.	4600000000 वर्ष
D.	6200000000 वर्ष
Answer» B. 4500000000 वर्ष

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