Photochemical smog, lowered air quality, and increased greenhouse gas release is much more common in urban areas compared to rural areas. what explains the lowered air quality association with urban areas?

a. rural areas have more green spaces that filter the air through plants.

b. more fossil fuels are used for combustion in industry and cars, which are more concentrated in urban areas.

c. urban areas have higher levels of litter and solid waste from population dense neighborhoods.

d. urban areas have less water recharge zones, causing particulates and pollutants to evaporate into the air rather than infiltrate into the ground.