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ICSE Class 9 Geography Question 4 of 22

Geographic Grid: Latitudes and Longitudes — Question 16

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Question

Question 16

Assertion (A): For each 1° longitude towards the East, 4 minutes are to be added and each 1° longitude towards the West, 4 minutes are to be subtracted.

Reason (R): The earth rotates on its axis from East to West.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R does not explain A. 111.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

A is true but R is false.

Explanation — The Earth makes a complete circle on its axis — it covers 360° longitudes in 24 hours. That is to say, it covers every 15° longitudes in one hour or 1° longitude every 4 minutes. The earth rotates on its axis from West to East.