Question

PLEASE NEED HELP I HAVE 5 MINUTES BEFORE ITS DUE

_________ pollutants are emitted directly into the air while ____________ pollutants are formed from the combination of chemical reactions & sunlight.

Industrial, primary

Primary, secondary

Secondary, primary

Photochemical, industrial

Answer 1

Primary , Secondary

Step-by-step explanation:

A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants react in the atmosphere.