Question

efficiency refers to​

Answer 1

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Efficiency is defined as the ratio of output through input. Something can be described as more energy efficient if it delivers more services for the same energy input or the same service for less energy input.

Answer 2

Answer:

ratio of output through input

Step-by-step explanation:

Efficiency is defined as the ratio of output through input. Something can be described as more energy efficient if it delivers more services for the same energy input or the same service for less energy input