We have a rainy season. How do you think it is related to the movement of the Earth and the pattern of Sun’s rays? Does it occur in the summer or winter or in the season in between?

The Earth revolves around the Sun while rotating around its own axis. As the Earth revolves around the Sun, Earth’s axis remains tilted in the same direction throughout the year. This movement of the Earth is a major factor that determines the seasonal variation in the southern and northern hemisphere of the Earth. The area which faces the sun directly therefore keeps shifting throughout the year. In March, the Sun shines directly over the equator, while in June; it shines directly over the Tropic of Cancer in the Northern Hemisphere. Then in September, the Sun shines directly over the equator and in December, it shines on the Tropic of Capricorn in Southern Hemisphere. Therefore, such movements cause a pattern of seasonal changes in different regions of the earth.