Variation in duration of day and night is due to
1. rotation of earth on its axis
2. revolution of earth round the sun
3. inclination of earth atan angle of 66 1/2
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1,2 and 3 |
Answer : B Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
