The only way to find out is to take it to a mechanic who has an engine analyzer. The rubbing could be caused by a loose mudshield (or a dozen other things). For rubbing sounds, you might want to check the clearance inside the wheel wells when fully turned to the right. (Possible tire contact with either front fender.) Your mechanic can check for noises from the Power Steering as well.
try to make it smooth as much as you can either by rubbing it or by polishing it......
The rough surface causes a lot of friction when the matchstick rubs against it. Friction causes heat (try this for yourself by rubbing the palms of your hands together- they feel hot. Then consider how smooth our skin is in comparison to the rough surface, so you appreciate how much heat it generated.) The heat causes the wood of the matchstick to set alight. Actually, the head of the matchstick is coated in a more flammable substance (phosphorus), which makes lighting even easier.
By weathering. The water currents weather the rocks leaving them smooth.
Normal wear.
Asthma causes contraction of the bronchial smooth muscle.
Clean it with rubbing alcohol, sand it using sanding paper, then buffer it and then rub it off with a cotton cloth.
Cartilage keeps bones from rubbing together and provides a smooth surface for movement at the joints
They put aveno on every morning after they get out of their dirt baths
The difference between breccias and conglomerate is that breccias are angular and conglomerates are smooth. What causes rocks to be smooth is transportation, such as when rocks are in a stream and are worn down. Therefore transportation is what causes the difference between breccias and conglomerates.
Cleavage
Weathering or air currents
Cleavage