Discussion :: World Geography
- 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 |
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Answer : Option C
Explanation :
both (a) and (b)
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