Question

Which of the following is/are the reason(s) why we experience different seasons in a year?

• A. Due to the Earth's gravity
• B. Due to the presence of magnetic poles
• C. Due to tilt of the Earth’s axis
• D. Due to change in the position of Earth around the Sun

Answer 1

Answer: (C), (D)

The correct options are
C Due to tilt of the Earth’s axis
D Due to change in the position of Earth around the Sun

As the Earth spins on its axis, producing night and day, it also moves about the sun in an elliptical orbit. This movement around the sun requires about 365 days to complete. The earth's spin axis is tilted with respect to its orbital plane. This causes the seasons. When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away, it is winter in that hemisphere.