Puberty.
water
Rigid body.
hundreds, to even thousands, and possibly millions of years. though i kind of doubt the millions
Smoke produced by cigarettes and smoking can change body systems.
Smoke produced by cigarettes and smoking can change body systems.
Everything from where they live to body structure. Sometimes even size.
switch
That would be radioactive decay.
a chemist
An increase in heart rate would have a similar effect as pressure on the cardiovascular system. This would result in a higher volume of blood being pumped through the body, increasing the pressure within the blood vessels.
That's a little difficult to answer without knowing what kind of vehicle.
Bring it to a body shop. I am not the kind of person who does that at there house!