Why did boy (the observer) hear the pitch of the sound change? what does this tell us about the frequency of the sound? support your conclusion based on results from the experiment and your knowledge of sound waves.

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

happy to

pls mark as brainliest.

i think if it were me i whould divide 300 dide 15

step-by-step explanation:

i believe the answer is a hope it and is correct