Answer:
physical change
Explanation:
its only changing things you see.
perpendicular to the wave motion.
The answer is D. i got all the other ones wrong ._.
Folk song
(Word cap filler)
The answer is A. Newton's third law of motion states that for every action, there is an equal and opposite reaction. A rocket exerts a large force on the gas that is in the rocket chamber (action). The gas thus exerts a large reaction force forward on the rocket (reaction). The large reaction force is called thrust.