Question

Which of the following statements regarding the duration of day and night is correct?

• A. Difference is least near the equator and progressively increases away from it.
• B. Difference is maximum at the Equator and progressively decreases away from it.
• C. Difference is least at the Tropics and progressively increases towards the Equator and Poles.
• D. Difference is maximum at the Tropics and progressively decreases towards the equator and poles.

Answer 1

Answer: (A)

Difference is least near the equator and progressively increases away from it.

Due to the axial tilt of the Earth of an angle of approximately 23 degrees, there is variation in the duration of days and nights across the globe. This is due to difference in intensity of Sun's rays falling on different parts of the globe. This variation is minimum at the equator while it is maximum on poles.