If it sounds like it's from one of the front wheels, you may have a worn out CV joint.
The earth's tilt causes an uneven heating of the earth. The uneven heating due to the tilt causes the different seasons throughout the year.
the uneven heating of the earth
Glass
Uneven watering.
uneven induction hardening pattern
a bad haircut .. hahaha
Uneven heating of the sun.
Bad rotors
Uneven solar heating
The grass is turning light green in spots due to uneven watering, nutrient deficiencies, or soil compaction.
the uneven heating of earth's surface causes pressure differences which set air in motion
It could be your shock absorbers or coil springs.