<span>Days and nights would still occur since that is due to the earth's rotation. </span>If the earth were not tilted on its axis,<span> <span>temperatures would be constant year round.
> If the Earth </span></span><span>did not tilt on its axis, there will be no changing of seasons too. Temperatures at the north may stay cold and the south,warm..(no big change year round).</span>