The air leaves the balloon in one direction; the car moves in the opposite direction. This balloon car illustrates for action, t
here is an equal and opposite reaction or A) the law of gravity. B) Newton's 1st law of motion. C) Newton's 2nd law of motion. D) Newton's 3rd law of motion.
Newton's third law of motion states that when one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.
Therefore, when car is moving in forward direction then air in balloon leaves in opposite direction.
Thus, we can conclude that this balloon car illustrates for action, there is an equal and opposite reaction or Newton's 3rd law of motion.
usually when a river, ocean or lake...etc becomes deeper is because of the weather the more hydrogen and oxygen atoms the more water :D and also gravitys pull thats pulling it deeper is another reason.