The correct answer is C. Storm water.
Dry water flow is the flow of storm water through a combined sewer. Combined sewers collect both sewage and storm water in the same pipe. During dry weather, only sewage flows through the sewer. However, during storms, the volume of storm water can exceed the capacity of the sewer, and the excess storm water overflows into nearby waterways. This can cause pollution and flooding.
A. Industrial sewage is sewage that is generated by industrial activities. It can contain a variety of pollutants, including heavy metals, solvents, and acids. Industrial sewage is typically treated before it is discharged into the environment.
B. Domestic sewage is sewage that is generated by households. It contains a variety of pollutants, including human waste, food waste, and detergents. Domestic sewage is typically treated before it is discharged into the environment.
D. Inclusive of domestic and industrial sewage but excludes storm water is not a correct answer. Combined sewers collect both sewage and storm water, but dry water flow is only the flow of storm water.