<span> Physical fitness is a goal; exercise is a means to reach that goal.
Physical fitness is a quality and strength of the state of muscles, heart, and ligaments. Exercise is an action that increases the quality and strength of the state of muscles, heart, and ligaments.</span>
First class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side you can't get a reaction unless something else causes a reaction.
