7.3 APES ET

What is a primary pollutant that contributes to the formation of ozone in the atmosphere?

• Carbon Dioxide

• Nitrogen Oxides

• Methane

• Water Vapor

Explain how volatile organic compounds (VOCs) contribute to the formation of photochemical smog.

• VOCs directly react with sulfur dioxide to form smog.

• VOCs react with nitrogen oxides in the presence of sunlight to form ozone, a key component of smog.

• VOCs are absorbed by plants, reducing smog formation.

• VOCs neutralize acid rain, preventing smog.

• It reacts with carbon dioxide to form carbonic acid.

• It reacts with water vapor to form sulfuric acid.

• It neutralizes nitric acid in the atmosphere.

• It forms ozone when exposed to sunlight.

Describe the process by which photochemical smog is formed in urban areas.

• Photochemical smog is formed when sulfur dioxide and water vapor react in the absence of sunlight.

• Photochemical smog is formed when nitrogen oxides and volatile organic compounds react in the presence of sunlight, leading to the production of ozone and other pollutants.

• Photochemical smog is formed when carbon monoxide and methane react in the presence of sunlight.

• Photochemical smog is formed when particulate matter settles on the ground.