estas de acuerdo con que la especie humana surge de un ancestro comun hominido o es creacion de dios?​

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Its actually d. it can make farmworkers sick

Iwould assume they all have the sun in the center.