It is best to say that efficient plumbing
a.
reduces water pollution by using less water
b.
reduces water pollution by using cleaner water
c.
increases water pollution by using more water
d.
reduces water pollution by using dirty water
it is best to say that efficient plumbing
a.
reduces water pollution by using less water
b.
reduces water pollution by using cleaner water
c.
increases water pollution by using more water
d.
reduces water pollution by using dirty water

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.  

The correct answer is option A, reduces water pollution by using less water

Explanation:

The efficient plumbing system nowadays not only focuses on efficient plumbing system with high performance but also emphasizes on the water saving. The best feature about an efficient plumbing is that it works on the concept of natural phenomena with least energy input (electricity/mechanical). All the plumbing fixtures and pipelines are designed in a way that they provide sufficient pressure to water to flow and also save the over consumption of water by regulating the volume of flow.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

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explanation: