In a way, the Earth's axis IS tilted on its side, that's why we have seasons.
There would be no four seasons if the earths axis was not tilted.
Seasons And Climate
Earth is tilted from it axis
The axis of the Earth is tilted 23.5 degress from the plane of the orbit round the sun.
Yes it is tilted at about 23.5 degrees
The Earth's axis of rotation is tilted 23.44 degrees from the plane of the ecliptic.
Because Earths axis is tilted.
south
The season
without the tilted axis the whole planet would be impossible to live on since this angle is a state of equilibrium
Mainly, there would be no seasons.
Because Earths axis is tilted.