Question

Explain how trees help maintain air quality.

short paragraph

Answer 1

Trees improve air quality by absorbing carbon dioxide during photosynthesis and releasing oxygen, and by trapping and removing pollutants and particulate matter on their leaves and bark. Their leaves and stomata can take up gases like nitrogen oxides, sulfur dioxide and ozone, while the tree canopy captures dust and soot. Trees also cool the air through shade and evapotranspiration, which reduces formation of ground‑level ozone and helps lower pollution levels in urban areas.