On which days the durations of the day and the night are equal at all places on the earth?

  1. 21 June & 23 September
  2. 23 September & 21 March
  3. 22 December & 21 March
  4. 21 June & 22 December
Anurag Mishra Professor Asked on 17th December 2015 in Environment Science.
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Answer:  (2) 23 September & 21 March 

 

Anurag Mishra Professor Answered on 17th December 2015.
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