Question

Why are days short and nights long in winter ?

Answer 1

Answer:

The tilt of the Earth – not our distance from the sun – is what causes winter and summer. ... After the winter solstice, the days get longer, and the nights shorter. It's a seasonal shift that nearly everyone notices. Earth has seasons because our world is tilted on its axis with respect to our orbit around the sun.

Explanation:

But, when the North Pole is pointed toward the sun, the South Pole is pointed away. So the Earth south of the equator gets less warmth from the sun. It is winter there. ... In winter, the days are shorter and the nights longer.