Question

Why are the seasons opposite in the northern and Southern Hemispheres

Answer 1

throughout the year, the earth tilts. This causes the north pole to be the closest to the sun half the year and the south pole to be the closest to the sun the other half.

Step-by-step explanation:

Answer 2

Great question!

That is because they are on opposite sides of our planet. If one side is illuminated, then the other side must be shadowed. So the Earth alternates between

Northern hemisphere tilted toward the Sun, southern hemisphere tilted away from the Sun

and

Northern hemisphere tilted away from the Sun, southern hemisphere tilted toward the Sun