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प्रश्न
How can you prove that the earth is a sphere by looking at the horizon?
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उत्तर
The view of the earth's surface as seen from a height is circular. We can prove that the earth is a sphere by looking at the horizon as with increase in altitude, the circular horizon also widens. Had the earth's surface been flat, the horizon would have been the same irrespective of the altitude.
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संबंधित प्रश्न
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Short Answer Question:
What is a planet?
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The line which divides day and night on the Earth’s surface is ______.
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