Place the listener at a certain distance away from the speaker slowly move the listener up and down what do you observe about the sound from the speaker how does the loudness of the sound be late to the wave patterns

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.