Question

Explain how the revolution of the earth and the tilt of its axis cause the occurrence of seasons.​

Answer 1

Instructions:

1. Explain the relative position of the Earth with respect to the Sun in a year​
2. Explain the consequent change in the sunshine​
3. Explain the change of seasons​

Solution:

The sunlight falls at different parts of the Earth at different times of the year due to the revolution of the earth and the axial tilt of the earth.​

This causes ​

• Equinox on 22nd March​
• Summer solstice on 21st June​
• Equinox on 21st September​
• Winter solstice on 21st December​

As a result of the apparent movement of the sun between the Tropic of Cancer and the Tropic of Capricorn, the different seasons - Spring, Summer, Autumn, and Winter - get repeated in a cyclic manner.