Net energy is
A) the usable amount of low-quality energy from a given quantity of energy resource
B) the total useful energy available from an energy resource
C) analogous to total income
D) the total useful energy from an energy resource minus the amount of energy used and wasted in producing it
E) the amount of energy used and wasted to produce useful energy

Question

Quizplus · Accepted Answer

Net energy is the total useful energy from an energy resource minus the amount of energy used and wasted in producing it. It is the energy available for use by society and is an important concept in assessing the feasibility and sustainability of energy sources. Option A is incorrect because it only refers to the usable low-quality energy, while net energy includes all useful energy. Option B is incorrect because it does not account for energy loss during production. Option C is incorrect because it does not reflect the energy concept, and Option E is incorrect because it refers to energy wastage, which is already included in the net energy calculation.

Net Energy Is