Question

Why do shopkeeper sprinkle water around their shops if the area is not cemented.

Answer 1

first
they do this to settle dust particle on wet ground
and
second
evaporation of water molecules causes cooling effects

Answer 2

the shopkeepers sprinkle water around their if the area is not cemented becoz during summer season it is very hot and water sprinkled around starts evaporating and thus evaporationcauses cooling ....so to keep the areas around cool they sprinkle water around their shops