Question

Why are air pollution levels higher in Mexico City than in other similarly denselypopulated cities?A.because Mexico City is surrounded by mountains that trap polluted airB.because Mexico City receives a large amount of precipitation each yearC.because Mexico City contains more cars and buses than other large citiesD.because Mexico City enga

Answer 1

A. because Mexico City is surrounded by mountains that trap polluted air.

The city sits in a high-altitude basin ringed by mountains, which prevents pollutants from dispersing (frequent temperature inversions trap smog). That geography, combined with many vehicles and strong sunlight that forms ozone, makes pollution worse than in many similarly dense cities.