Will give brainlest radon is a kind of nuclear fission byproduct photochemical smog nuclear fuel indoor air pollutant

Indoor air pollutant

Air pollution can be defined as contamination of atmospheric air by wastes, which can occur in solid, liquid and gaseous form. These pollutants can affect health of humans, plants and animals. Radon is a colorless, and odorless gas. It is a potential air pollutant. It is a dense gas which sinks in the air. It is often found at the basement of homes, especially in the areas where shale and boulders are present in the soil. Radon is produced as a result of radioactive decay of radium in the soil. Radon gas gets attach to the dust and other particles present in the air. It enters inside the lungs, produces alpha and beta radiation that damages DNA, and results in lung cancer.  

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.