In the first class lever the fulcrum is located between the effort and the resistance.In second class lever The second class of lever has the fulcrum at one end, the effort applied at the other end, and the resistance somewhere between those points. [ The third class of levers has the fulcrum at one end of the lever, and the weight or resistance to be overcome is at the other end, with the effort applied at some point between. ]
<span>Are at risk as much smokers for respiratory and circulatory diseases.
<span>Passive smokers</span></span>
Exercise is the physical process which helps us to burn fats and calories.
I think it is precipitation, because it is water falling from the sky...
