Question

Question was provided via image upload.

Explanation:

The autumnal equinox (around September 22 - 23) marks the start of fall in the Northern Hemisphere. After this, the Southern Hemisphere tilts toward the Sun, so more sunlight falls on the Southern Hemisphere. This is related to Earth's axial tilt and seasonal changes, a topic in Geography (Natural Science subfield) or Astronomy (Physics subfield, but Geography also covers seasons).

Answer:

Southern