Name the substance added to water stored in reservoirs in regions with scanty rainfall. Give reason.

Name the substance added to water stored in reservoirs in regions with

1.	Name the substance added to water stored in reservoirs in regions with scanty rainfall. Give reason.
Answer» Solution :In regions with scanty RAINFALL, a substance called cetyl alcohol is SPRAYED on the water in reservoirs meant for STORAGE of large QUANTITIES of water. This reduces the rate of evaporation of water.