Answer:
B is the right answer I think.
Answer:
my classes are also boring
Explanation:
1) - C) Algae growing on the glass
2) - A) Bacteria that lives in the intestine of a rabbit
3) - D) All the gray squirrels that live in a forest
4) - D) Density
Hope this helps!
D.
If the vibrations have a low frequency, the sound is heard as a __low-pitched sound_____. If the vibrations have a high frequency, then the sound is heard as a __high-pitched sound_____.
Explanation:
High pitched sound is of higher frequency because they make the air molecules vibrate much faster than low-pitched sound. Due to their high frequency, their wavelength is shorter (Remember wavelength and frequency are inversely proportional). Vice versa is true to the low-pitched sound. They vibrate air molecules slower than high-pitched sound. Their wavelength is longer and frequency smaller.
Learn More:
For mor on pitch of sound check out;
brainly.com/question/61859
brainly.com/question/1509263
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