Question

The primary input in any system is (a) Food (b) energy (c) water (d) natural gas​

Answer 1

Answer:

Option b) energy

Explanation:

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Answer 2

(b) Energy is the primary input in any system

Explanation:

• Primary energy (PE) is a natural energy form that has not undergone any human-engineered conversion procedure.
• It is the energy contained in raw fuels and other sources of energy received as input to a system, including waste. Non-renewable and renewable primary energy are both possible.
• When the term "primary energy" is used to describe fossil fuels, it means that the fuel's embodied energy is available as thermal energy, with roughly 70% of it wasted in the conversion to electrical or mechanical energy.
• A carrier of energy such as electricity is referred to as secondary energy. These are made by converting a primary energy source into a secondary energy source.