What is 'Greased Lightning-10 (GL-10)', recently in the news?
AElectric plane tested by NASA
BSolar-powered two-seater aircraft designed by Japan
CSpace observatory launched by China
DReusable rocket designed by ISRO
Answer & Solution
Correct answer: A. Electric plane tested by NASA
UPSC CSE Prelims 2016 (GS-I, Set A), Q.47. Answer key: A (coaching consensus; UPSC did not publish an official 2016 AK separately on upsc.gov.in).
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