Question

the closer to 100 percent a machines efficiency is, the better it is at reducing

Explanation:

Machine efficiency is related to how well it converts input energy into useful output energy. When efficiency is closer to 100%, it means less energy is wasted. In physics, the wasted energy often takes the form of thermal energy (heat) due to factors like friction within the machine. So, a more efficient machine reduces thermal energy loss.

Answer:

thermal energy loss