I can change my face but remain the same, my forms are many yet my essence is one, I am vital to the machines. What am I?
Category: Science · Difficulty: hard
Hint: Think about what powers everything around us.
Answer
An energy source
Explanation
An energy source provides power for various processes and technologies, appearing in different forms like electricity or fossil fuels.
This is a hard science riddle — a tricky one that takes a little thought. The answer is An energy source.
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