Question

The gas that plays a critical role in the formation of photochemical smog is called

Answer 1

co and ca2 are the correct answers

Answer 2

Smog is a type of air pollution.

The word 'smog' was first invented in early 20th century.

Smog is typically a smoky fog,

Smoke+Fog=Smog.

Photochemical smog is a type of smog,in this type of smog's formation the ozone and nitrogen oxides which are present in the atmosphere,plays a great role.

The ultraviolet rays from the sun reacts with these gases and forms the photochemical smog.

This type of smog is very harmful for any living being.