General Knowledge - World Geography - Discussion

72. 

The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of

[A]. small, progressive changes in the earth's rotational speed
[B]. small, progressive change in earth's orbit around the sun
[C]. both (a) and (b)
[D]. None of the above

Answer: Option C

Explanation:

No answer description available for this question.

Bindu said: (Nov 5, 2014)  
But earths rotational speed is constant.

Laxman Warpe(Rit) said: (Oct 22, 2015)  
Earth rotational speed decreases very slowly. So there is correction in time of 1 sec.

Sandip Jadav said: (Oct 29, 2015)  
Year increase but rotation speed decrease. I confused with question.

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