Answer: a. reduces water pollution by using less water.
Plumbing is a system of water that conveys water for various application. It utilizes pipes, valves, tubes to transport water from one place to another. It may transfer water from a big reservoir to different locations. It is necessary for irrigation in agricultural fields, household sanitation, facilitating portable drinking water. Plumbing systems also contains filters which can remove contaminants present in water. An efficient plumbing system reduces water pollution by using less water as it allows adequate flow of water necessary for use and may automatically close or turn up when required hence, prevents the excess loss of clean water therefore, prevents water pollution. It ensures sustainable use of clean water.
