Question

What are the toxic gases such as sulfur dioxide and carbon monoxide released into the air by factories, power plants and motor vehicles called?

A. Nonpoint sources
B. Emissions
C. Point sources
D. Smog

Answer 1

B. Emissions

Step-by-step explanation:

", an emission is anything that's been released out into the open. But more often it refers to gases being released into the air, like greenhouse gasses or emissions from power plants and factories."