Variation in duration of day and night is due to:1. rotation of earth on its axis2. revolution of earth around the sun3. inclination of earth at an angle of 66%.

Variation in duration of day and night is due to:1. rotation of earth

1.	Variation in duration of day and night is due to:1. rotation of earth on its axis2. revolution of earth around the sun3. inclination of earth at an angle of 66%.
A.	1and 2
B.	2 and 3
C.	1 and 3
D.	1, 2 and 3
Answer» C. 1 and 3

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Variation in duration of day and night is due to:1. rotation of earth on its axis2. revolution of earth around the sun3. inclination of earth at an angle of 66%.

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