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If the earth was not tilted at an angle of 23.5 degrees, there would not be the different seasons.
There would be no four seasons if the earths axis was not tilted.
Seasonal cycle
It is tilted (23.5 degrees).
No
The Earth is tilted on its axis.
no seasons
Winter, spring, summer, autumn. The Earth is ALWAYS tilted, otherwise there would be no seasons. (see related question)
The seasons would be diffrent
The Earth is tilted. It affects seasons. The earth takes one year to move round the sun. In summer you are on the bit that's tilted towards the sun. In winter you're on the bit that's tilted away from the sun.
when it's cold it would be tilted when its summer its Straight :)
Even if the earth was tilted, it would still rotate on its own axis. The axis would meet the earth at the poles and the regions surrounding those points would be polar regions. That would be true whatever the earth's tilt.