What causes lighting and thunder?

Answer 1

Actually in the atomosphere the wind will be blowing in opposite direction at the successive higher levels. So water molecules in the form of cloud would be crossing at higher speed. By this, electrification would occur and the upper cloud may lose electrons to the lower cloud. So lower one becomes negatively charged

If such oppositely charged clouds happen to come nearby then electrical discharge takes place. This forms lightining. During lightning enormous current of the even 100 A would flow. This would cause the air medium so hot and sudden expansion would produce vibrations which is heard as thunder

So electrification----->electrical discharge------->lightning-------> thunder

Answer 2

what causes lightning and thunder is thatwhen the sun is like it turns a little bit and it goes to are area it becomes a....................................................................................................................................................................................................................................piece of cake!

Answer 3

Lightning is caused by an electrical discharge between regions of opposite charge in the atmosphere, typically during thunderstorms. Thunder is the sound produced by the rapid expansion and contraction of air around the lightning bolt as it heats up to temperatures five times hotter than the surface of the sun.