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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
Short Answer Question:
How big is the sun? Describe its size with respect to the earth.
How much time does a ray of moonlight take to reach the Earth?
Name the planet farthest from the Sun.
Which star is known as ‘Evening Star or “Morning Star”?
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Earth has the most ideal temperature conditions.
What makes our Sun as an ordinary star in the universe?
Distinguish between the following pair.
Planet and Planetoids
Give reasons for the following:
Mercury completes its orbit in less time than the Earth.
Give reasons for the following:
Comets appear very rarely.
How many oceans are there on the Earth?
