नासा ने सौर मंडल के बाहर से – McqOptions

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1.	नासा ने सौर मंडल के बाहर से कितने पृथ्वी के आकार के एक्सोप्लैनेट की खोज की है?
A.	18
B.	23
C.	8
D.	5
Answer» B. 23

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