Why does it matter that the earth axis is titled?

This is the cause of Earth's seasons. Summer occurs in the Northern hemisphere when the north pole is directed toward the Sun. Variations in Earth's axial tilt can influence the seasons and is likely a factor in long-term climate change

is this a multiple choice question? if so, could i see the answers to give you the right one!

bujías y una hora antes y no me parece muy difícil