The Earth's axis of rotation is tilted 23.44 degrees from the plane of the ecliptic.
Yes it is tilted at about 23.5 degrees
No, it is the outermost sphere of the earth.
Earth is tilted from it axis
Seasons And Climate
There would be no four seasons if the earths axis was not tilted.
sphere
the middle sphere is between the asthenosphere and the outer core!
The axis of the Earth is tilted 23.5 degress from the plane of the orbit round the sun.
south
The season
sphere, round
Because Earths axis is tilted.