Which of the following best explains why the Southern Hemisphere experiences seasons opposite to those in the Northern Hemisphere?

Question

A. The tilt of Earth's axis is reversed in the Southern Hemisphere.
B. The Southern Hemisphere is closer to the sun during its winter.
C. The Southern Hemisphere is closer to the sun during its winter.
D. The Southern Hemisphere has a longer revolution around the sun.

Answer 1

The correct explanation for why the Southern Hemisphere experiences seasons opposite to those in the Northern Hemisphere is:

A. The tilt of Earth's axis is reversed in the Southern Hemisphere.

This refers to the fact that while one hemisphere is tilted toward the Sun, experiencing summer, the other hemisphere is tilted away from the Sun, experiencing winter. More specifically, it’s the axial tilt of Earth (about 23.5 degrees) that causes the seasons, and this tilt remains constant as Earth orbits the Sun, resulting in opposite seasons. None of the other options provided accurately describe the reason for the opposite seasons.