Teaching AWES Army Public School Mock Test General Knowledge Geography (World Geography) Origin and evolution of Universe Solar system

पृथ्वी की आयु लगभग __________ है। 

1
1.9 अरब वर्ष
2
4.6 अरब वर्ष
3
6.3 अरब वर्ष
4
2.6 अरब वर्ष
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