What is embodied energy?, Energy produced by a fuel, Energy lost during energy transfer, Energy used to make and install an item, Energy stored in batteries, What does energy density refer to?, The cost of producing energy, The amount of energy lost as heat, The number of uses of a fuel, The amount of energy in a particular mass of fuel or that can be harnessed by a particular mass of equipment.​, What is meant by energy mix?, The blending of fuels to make electricity, The combination of energy sources used to meet demand, The ratio of renewable to non‑renewable fuels, The mixture of gases released during combustion, What is the payback period?, The time taken to install an energy system, The time taken to recoup initial setup costs, The time taken for a fuel to be replenished, The time taken for energy to be stored, What does versatility describe?, How many different uses a fuel source has, How much pollution a fuel creates, How quickly a fuel burns, How easy a fuel is to transport, What is an intermittent energy source?, One that is always available, One that does not produce energy consistently, One that is non‑renewable, One that is expensive to maintain, Which of the following is a predictable intermittent energy source?, Solar, Wind, Tidal, Biomass, Which fuel has the highest energy density?, Coal, . Natural gas, Nuclear, Oil, What is a finite resource?, A resource that is constantly replenished, A resource that produces no emissions, A resource that forms slower than it is used, A resource that is cheap to extract, What is a renewable resource?, A resource that cannot be replaced, A resource that is constantly replenished, A resource that is formed over millions of years, A resource that is only used for electricity

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