1, lightning is due to the existence of positive and negative charges in or between clouds. When the potential difference is large enough, the primary charges interact with each other, resulting in electric sparks during neutralization.
2. From the meaning of lightning, it can be seen that lightning is a fire caused by the violent movement of clouds. Because the temperature is different, it will show different colors.
3. Red lightning shows that the temperature of luminous air is only heated to about 3000 degrees, and the light emitted at low temperature has a long wavelength, so it is mainly red. In other words, the temperature of the air determines the color of lightning.
That's why lightning is sometimes red.