I can provide warmth, power machines, or even propel spacecraft. What am I?
Category: Science · Difficulty: easy
Hint: Think about what can be burned or consumed.
Answer
A source of fuel
Explanation
A source of fuel provides energy through combustion, while the others refer to energy storage or transmission methods.
This is an easy science riddle — a good one for children and beginners. The answer is A source of fuel.
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