Mapa mental en el que represente las caracteristicas morfologicas fisiologicos citologicos y bioquimicos de un raton

Heatamount of salt . . .

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

Non living: objects like rocks, buildings, and snow.living: animals, plants and humans.

Basalt rock can be rough or maybe smooth