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29 August, 21:03

What source of thermal energy does an internal combustion engine use?

A. Steam

B. Hot Water

C. Burning Fuel

D. Refrigerant

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Answers (2)
  1. 29 August, 21:33
    0
    D

    Explanation:

    The source of the thermal energy in a combustion engine is the spark from the spark plug that ignites the fuel and air mixture converting chemical energy into thermal energy.
  2. 29 August, 22:40
    0
    C because thermal energy is hot
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