Question : The earth rotates on its axis at an inclination of
Option 1: 23 1/2 degree
Option 2: 22 1/2 degree
Option 3: 21 1/2 degree
Option 4: 20 degree
Correct Answer: 23 1/2 degree
Solution : The correct answer is 23.5 degree.
Earth' axis of rotation is inclined at 23.5 degree from its orbital plane. Although this inclination varies slightly because of the gravitational attraction of sun and moon. This is responsible for the weather phenomenons on earth and makes life possible. The change in orbital tilt is known as obliquity.
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