Q: 44 (IAS/2012)

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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 red shift 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 :
question_subject: 
Geography
question_year: 
2012
question_exam: 
IAS
question_sub_subject: 
Physical Geography
question_topic: 
Universe
stats: 
0,1664,3424,1048,1872,1208,960