Question

Auroras are lights that appear at earth’s northern and southern poles. what is the main cause of an aurora?

Answer 1

The main cause of an aurora is that Solar wind enters Earth’s atmosphere, and particles interact with ions.

Step-by-step explanation:

The aurora is the result of collisions between gaseous particles in the Earth's atmosphere when they come with charged particles releasing from the sun's atmosphere. This is a very popular spectacle due to the variety of colors that we can see among this lights are also caused by the different chemicals, for example, pale yellowish-green is produced by oxygen, red is produced by high-altitude oxygen, and blue or purplish-red by nitrogen.

Answer 2

When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This causes the aurora to appear.