A. Moon is revolving round the earth
B. Earth is revolving round its axis
C. Earth is revolving around the sun
D. Planet Mars is attracting the sun
The season changes because of C. Earth is revolving around the sun.
Here’s why:
- The Earth’s axis is tilted at an angle of about 23.5 degrees relative to its plane of orbit around the Sun.
- As Earth travels around the Sun, different parts of the Earth are tilted more towards or away from the Sun at different times of year.
- This tilt affects the amount of sunlight that reaches different parts of the Earth, leading to variations in temperature and creating the seasons.
The Moon’s revolution around the Earth (which takes about 27.3 days) affects tides but not seasons. Earth’s rotation on its axis creates day and night cycles. Mars’ gravitational pull is insignificant compared to the Sun’s and wouldn’t cause seasonal changes.