why sometime day longer than night?

Answer 1

Because the earth's axis of rotation is not perpendicular to the plane of its orbit around the sun -- it is inclined at an angle of 23.5 degrees. At this time of year, the north pole is pointed toward the sun, causing the days in the northern hemisphere to be longer.

Answer 2

Hi. As the Earth rotates on it's axis while revolving around the Sun, it tilts from 0 degrees latitude (Equator )up to 23.5degrees north (Tropic of Cancer ) .Stops and reverses south to 0 degrees latitude( Equator) and further tilts to 23.5degrees south (Tropic of Capricorn.) Stops and begins to change direction to tilt north again.This takes 12 months to complete one full tilt down and one full tilt up and gives us our 4 seasons ...autumn and spring 0 degrees.Summer and Winter...latitude.23.5degrees north..and 23.5 degrees south.



Therefore when the Sun is over the Tropic of Cancer the maximum number of daylight hours occur about 22 June.
This is known as the Summer Solstice.

Where i live(Australia) our maximum daylight hours are on 22 December when the Sun is directly over the Tropic of Capricorn (23.5 degrees south of the Equator)..which is the shortest day in the Northen Hemisphere (Winter Solstice)
Cheers.

Answer 3

cause of rotation of earth