Question

Oxides of nitrogen contribute to the formation of?

A. High levels of CO2.
B. Acid rain.
C. Photochemical smog.
D. Particulate emissions.

Answer 1

Oxides of nitrogen contribute to the formation of photochemical smog and acid rain, not high levels of CO2 or particulate emissions directly.

Step-by-step explanation:

Oxides of nitrogen, particularly nitrogen dioxide (NO2), contribute to the formation of photochemical smog and acid rain. These substances are highly reactive gasses that are primarily produced through the combustion of fossil fuels in vehicles, power plants, and off-road equipment. When released into the atmosphere, these nitrogen oxides can react with other chemicals in the presence of sunlight to form smog and convert into nitric acid, contributing to acid rain. Additionally, nitrogen oxides can lead to the formation of fine particulate matter that impairs visibility and affects human health.

Therefore, the correct answer to the student's question is:

B. Acid rain.
C. Photochemical smog.
These two options are the primary environmental issues contributed to by the nitrogen oxides.