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ICSE Class 9 Answered

Give four reasons to prove that the Earth is spherical in shape.  
Asked by Topperlearning User | 12 May, 2015, 12:02: PM
answered-by-expert Expert Answer

Four reasons to prove that the Earth is spherical in shape are:

  1. During a lunar eclipse, the shadow of the Earth falls on the surface of the Moon. This shadow is visible as an arc of a circle. Since a shadow of a spherical object always appears spherical in shape, we know that the Earth is spherical in shape.
  2. The Pole Star can be observed at an angle of 900in the sky at the North Pole. If we travel southwards, the angle of the Pole Star decreases and at the Equator, the angle becomes zero. This proves that the path of travel is an arc of a circle.
  3. Since all the planets and the Moon appear spherical in shape, we can also conclude that the Earth too is spherical in shape.
  4. The pictures of the Earth taken from space prove that  the Earth is a sphere.
Answered by | 12 May, 2015, 02:02: PM
ICSE 9 - Geography
Asked by zimmylalwani9363.9sdatl | 31 May, 2020, 10:35: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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