I believe that the correct answer is D
Answer:
Hi! I think it's trumpet.
(Fast snd bright) as a result to lift spirits and start movement
Yes I can!
Sound waves are always transverse. Meaning they look up and down like an actual wave. Sound waves must contain what we call a medium, a medium is what carries the wave. Sound waves a partially carried by air. The distance from one crest (the top of the save) to another crest is called wavelength. Wavelength can be from crest to crest AND trough to trough (The bottom of the wave). The amplitude is from the crest (or trough) to the rest position.
<em>I hope this helps! Please let me know if you have anymore wave questions, for that is the thing I know best!</em>
