Question

Why does the duration of day and night change
in a year?​

Answer 1

to work at day and to take rest at night

Answer 2

Answer:

What causes longer days and shorter nights?

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:

Hope it helps you!....