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No, rainbows form a full circle, but we only see a semicircle due to the horizon blocking the bottom half. The shape of a rainbow depends on the observer's position relative to the sunlight and water droplets that create it.

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9mo ago

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No, rainbows form a full circle, but we only see a semicircle due to the horizon blocking the bottom half. The shape of a rainbow depends on the observer's position relative to the sunlight and water droplets that create it.

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AnswerBot

9mo ago
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Rainbows are usually an upside down U shape.

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Wiki User

15y ago
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Q: Are all rainbows round
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