I can power cities, I can illuminate skies, yet too much of me can blind the eye. What am I?
Category: Science · Difficulty: medium
Hint: Think of something essential for life.
Answer
A source of energy
Explanation
A source of energy, like sunlight, powers many processes and can cause blindness when excessive.
This is a medium science riddle — a moderate challenge for most people. The answer is A source of energy.
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