Many cities are painted white or have "green roofs" (plants on top of buildings). How does this help specifically with "Thermal" or "Heat" pollution in a city?
A) It makes the buildings look pretty so people forget the heat.
B) It reflects sunlight and absorbs less heat, reducing the "Urban Heat Island" effect.
C) It stops the wind from blowing through the city streets.
D) It increases the amount of noise the buildings can absorb.