What is it that goes up and goes down but does not move?
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Sunlight
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Roller Coaster
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Water
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Temperature
D
Correct answer
Explanation
This is a classic riddle playing on the dual meaning of 'up and down'. Temperature rises and falls (numeric increase/decrease) without spatial movement. Sunlight and water physically move; a roller coaster both moves and goes up/down. Temperature is the only option that changes value without changing position.