Variations in the length of day and night time from season to season are due to –

The causes of Day and Night is –

When the length of day and night is equal the Sunrays falls perpendicular at –

The duration of its day and tilt of its axis are almost identical to those of the Earth. This is true of :

Clear sky nights are cooler than cloudy sky nights due to

Time taken by light emitted from sun to reach earth is –