I hold two sides, yet appear as one, I'm central to decisions when things are undone. What am I?
Category: Science · Difficulty: hard
Hint: Think about something that can turn things on or off.
Answer
A switch
Explanation
A switch controls the flow of electricity, causing devices to operate or remain off.
This is a hard science riddle — a tricky one that takes a little thought. The answer is A switch.
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