Question

How is the colour ofsky different during the day and night?

Answer 1

The colour of sky during day is lightish blue because of Sun and at night it's black .These differnces are because of rotation and revolution of Earth.

Answer 2

here is ur answer..
At day,the sun is directly above our heads and sunlight falls directy on surface .Due to this the blue light of smaller wavelength scatters and sky appears blue and red light of larger wavelength comes directly....

At night,the sun hides and the light from the sun cuts off due to which the night sky appears black ...