Fist one correct.
second wrong because not all heat is used for work, some of it lost to other.
third wrong because fuel burn inside is called combustion engine
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Answer: it means if you give a bad input it will result in a ad output.
Explanation:
It has n acronym GIGO which refers to how the quality of an output is determined by the quality of input.
Garbage is trash info... or input. And grabage out is the trash output.
It follows the normal convention of BODMAS , which is the order of precedence of operations , so the answer equals to 26
