Question

what do air pollutants in the form of particulates do that negatively impacts plants?
promote photosynthesis
steal the water vapor
block the sun
make glucose

Explanation:

Particulate air pollutants form a layer on plant leaves and surfaces. This layer can block sunlight from reaching the chloroplasts in plant cells. Since sunlight is essential for photosynthesis (the process by which plants make glucose), blocking the sun negatively impacts plants. Promoting photosynthesis and making glucose are positive plant - related processes and particulates don't steal water vapor.

Answer:

block the sun