Question

2. MOTIONS OF THE EARTH
8. Answer the following questions :
(1) Why do days and nights become longer and shorter?​

Answer 1

Answer:

The days in the summer become long and nights becomes shorter because of the summer the sun rays falls directly on the earth. But thedays in winter are shorter and nights are longer because the sun rays are slanting towards the earth.

Answer 2

Answer:

$\huge\underline\bold\purple{Answer}$

Northern Hemisphere dwellers, or most of the Earth's population, have probably all noticed longer days and shorter nights in the summer and the opposite in winter. This phenomenon occurs because the Earth's axis is not straight up and down at a 90 degree angle, but it is instead tilted a bit.

Therefore, as the planet orbits the sun every 365 days, sometimes the Northern hemisphere is closer to the sun (summer) while sometimes it is farther away (winter).

$\underline\bold\pink{Summer\::Longer\:Days\: and\:Shorter\:Nights}$

• To explain why days are longer in summer and shorter in winter, first consider the two ways the Earth is rotating all the time.

It spins around its axis, or the imaginary line running through the North and South poles, every 24 hours so that part of the planet is always facing the sun (experiencing daytime) while the opposite side of the planet is not (experiencing nighttime). Meanwhile, the Earth is also orbiting the sun, completing its circle every 365 days.

If the Earth's axis was straight up and down at 90 degrees, the length of time spent facing the sun would always equal the length of time facing away. But it isn't.

Instead, the Earth is tilted slightly at 23.5 degrees to be exact. Additionally, this tilt is always pointed in the same direction in space, toward Polaris (the North Star), even as the planet travels in a circle around the sun. This means that throughout its yearly orbit, sometimes the Northern hemisphere is closer to the sun (summer) while sometimes it is farther away (winter).

Depending where you are on the planet, the difference in the length of day from season to season can be larger or smaller