Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of universe? 1. Detection of microwaves in space 2. Observation of redshift phenomenon in space 3. Movement of asteroids in space 4. Occurrence of supernova explosions in space Select the correct answer using the codes given below:
A1 and 2
B2 only
C1, 3 and 4
DNone of the above can be cited as evidence
Answer & Solution
Correct answer: A. 1 and 2
UPSC CSE Prelims 2012 (GS-I, Set A), Q.19. Answer key: A (coaching consensus; UPSC did not publish an official 2012 AK separately on upsc.gov.in).
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