Question

1. what does the term energy efficiency refer to?

a. using less energy to achieve the same output
b. generating energy from non - renewable sources
c. increasing fossil fuel usage
d. enhancing energy waste

Explanation:

To determine the correct answer, we analyze each option:

• Option a: Energy efficiency means using less energy to get the same result (output), which matches the definition.
• Option b: Generating energy from non - renewable sources is about energy generation source, not efficiency.
• Option c: Increasing fossil fuel usage is about fuel consumption, not efficiency.
• Option d: Enhancing energy waste is the opposite of energy efficiency.

Answer:

a. Using less energy to achieve the same output