Explain three proofs that earth is spherical
Answer Text: 1. If one moves towards the east in a straight line he will end up where he started.2. Satellite photographs taken from space show that the earth is like a sphere.3. Places in the east see the sun earlier than those in the west.4. When a ship is approaching the smoke is seen first, then the mast and finally the whole ship.5. All the planets are spherical so the earth being one of them is also spherical.6. During the moon eclipse the earth casts a spherical shadow on the moon.7. The earth’s horizon appears curved when observed from a very high point like a tower.
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