Question

catalytic converters are devices used on automobiles to reduce which of these emissions?
water
sulfuric acid
nitrogen oxide
sulfur

Explanation:

Catalytic converters in automobiles use catalysts to convert harmful pollutants in exhaust gas into less - harmful substances. Nitrogen oxides are one of the pollutants that catalytic converters reduce. Water is a normal product of combustion and not a pollutant that catalytic converters target. Sulfuric acid is not an emission directly reduced by catalytic converters. Sulfur is not a typical emission reduced by catalytic converters in the form presented here.

Answer:

nitrogen oxide