Answer:
B. amplitude.
Explanation:
The loudness of a sound is related to the amplitude of the vibration that produces the sound. The bigger the amplitude, the louder the sound.
a piece of music sung or played in the open air, typically by a man at night under the window of his lover.
In music, a serenade is a musical composition and/or performance delivered in honor. Serenades are typically calm, light pieces of music. The term comes from the Italian word serenata, which itself derives from the Latin word serenus.
Answer:
red, yellow. blue
Explanation:
these are the 3 primary colors
