I need help plz and thx What would be the effect on the seasons and the northern and southern hemispheres if Earth were not tilted? Explain your answer.

(its science, not bio I'm in middle school 8th grade I don't know why it says highschool)

If the Earth weren't tilted on its axis, there would be no seasons. And humanity would suffer. When a Mars-size object collided with Earth 4.5 billion years ago, it knocked off a chunk that would become the moon. It also tilted Earth sideways a bit, so that our planet now orbits the sun on a slant.

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