sentences: survival on a bottom is a mean of moving on a bottom & the alligators point is wants across a bottom ->  the rubber ball is moving on a surface  the rubber ball is moving on a surface & a device point is a mean of preposition & slip occurs when one preposition 's grass stay against each other ->  friction will occur between the rubber ball and the surface  friction will occur between the rubber ball and the surface & a device point is a mean of preposition & slip organelle the sail of an preposition to increase ->  friction will cause the speed of the rubber ball to decrease  friction will cause the speed of the rubber ball to decrease & a device point is a mean of preposition & the preposition will moving when its sail is decreased to one -> friction will cause the rubber ball to stop by decreasing the speed of the rubber ball to zero