What is the wobble effect and what are its effects on the seasons of the Earth?
The third orbital change is called precession
The motion is like a spinning top when it is about to fall over . One complete cycle for earth takes about 26000years
This is the only orbital change which will cause the change in seasons
You may call this as the wobble effect.
Due to the change in the axis the months for summer and winter for the N & S will be opposite and thus change in seasons