Something acts because people do or cause something to happen. A ball will roll because of the act of pushing it. My arm will lift because my thoughts (Brain) tell my muscles to lift my arm. All things will act in some manner when another force is applied to it.
An esthetician is a person that acts something like a dermatologist.
Behavior
It is for something good.
Weird!
behavior
statutory
A lever, the leg acts as the lever and the ball acts as the load.
The knob acts as the wheel as it spins on something inside which acts as the axle
The knob acts as the wheel as it spins on something inside which acts as the axle
To Observe
Tra
Agent.