Select the best answer for the question.

Which of the following is not a requirement of a practical fuel?

A. It must contain a large amount of stored energy.
B. It must occur in abundance in nature or be easy to produce.
C. It must be made up of elements that combine easily with oxygen.
D. It must be in the solid state to be used.



Answer :

Final answer:

A practical fuel must meet specific criteria such as energy content, abundance, and ease of oxygen reaction. Solid state requirement is not a universal need for practical fuels.


Explanation:

Fuel requirements include containing a large amount of stored energy, being abundant or easy to produce, and combining easily with oxygen. The option that does not align with a practical fuel requirement is OD. It must be in the solid state to be used. Solid state fuels are not always a necessity for practical fuel usage.


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