Question

Discuss the phenomenon of pair production?

Answer 1

Answer:

Pair production, in physics, formation or materialization of two electrons, one negative and the other positive (positron), from a pulse of electromagnetic energy traveling through matter, usually in the vicinity of an atomic nucleus. Pair production is a direct conversion of radiant energy to matter.

Answer 2

Pollution enters the Earth's atmosphere in many different ways. Most air pollution is created by people, taking the form of emissions from factories, cars, planes, or aerosol cans.

This air pollution often appears as a cloud making the air murky. It is called smog.