Question

The inclination of the Earth's axis gives rise to which of the following?

• A. The occurrence of days and nights
• B. The formation of seasons
• C. The rotation of the Earth
• D. 6-month cycle of complete brightness and darkness at the Poles

Answer 1

Answer: (B), (D)

The correct options are
B The formation of seasons
D 6-month cycle of complete brightness and darkness at the Poles

The Earth rotates on its axis. But even if the Earth had a non-inclined axis, it would still be able to rotate around it.

The Earth's axis is always tilted at an angle of 66.5 degrees to its orbital plane. This causes the sun rays to fall vertically at different points on the Earth at different times of the year. For example, the sun rays fall vertically on the Tropic of Cancer on 21st June and on the Tropic of Capricorn on 22nd December, thus causing different seasons in the Northern and the Southern Hemispheres.

The inclination of the Earth's axis causes sunlight to reach one of the Poles for 6 months continuously while the other Pole remains in darkness for the entire time period.