The earth rotates around its axis from

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WBSSC Group D Official Paper (Held On: 19 Feb, 2017)
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  1. North to South
  2. South to North
  3. East to West
  4. West to East

Answer (Detailed Solution Below)

Option 4 : West to East
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CT 1: Ancient History (Prehistoric to Gupta Age)
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Detailed Solution

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The correct answer is West to East.

Key Points

  • The Earth rotates around its axis in a counterclockwise direction when viewed from above the North Pole, which corresponds to a rotation from West to East.
  • This rotation is the reason why the Sun, Moon, and stars appear to rise in the East and set in the West.
  • The Earth's rotation period is approximately 24 hours, which defines the length of a day.
  • The rotation from West to East is responsible for the phenomenon of the Coriolis effect, which impacts weather patterns and ocean currents.

Additional Information

  • Earth's Axis: The axis of rotation is an imaginary line passing through the North and South Poles, tilted at an angle of 23.5 degrees relative to its orbital plane.
  • Day and Night Cycle: The rotation of Earth causes one hemisphere to face the Sun (day) while the other faces away (night).
  • Coriolis Effect: This phenomenon, caused by Earth's rotation, deflects moving objects like winds and ocean currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
  • Geostationary Satellites: These satellites orbit Earth from West to East at the same rotational speed, appearing stationary relative to a specific location on Earth's surface.
  • Historical Understanding: The concept of Earth's rotation was first proposed by ancient astronomers like Aryabhata and later confirmed with modern scientific evidence.
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