Question

which plants are widely planted in cities because of their resistance to air pollution?
lycopods
ginkgos
cycads
conifers
grasses

Explanation:

Ginkgos are known for their ability to tolerate air pollution. Lycopods are club - mosses and not typically urban pollution - resistant trees. Cycads are often slow - growing and not as commonly used for urban pollution resistance. Conifers can vary in their pollution tolerance, but ginkgos are more specifically recognized. Grasses are not trees planted widely in cities for pollution resistance in the same sense as ginkgos.

Answer:

ginkgos