Question

what attribute of sound allows us to distinguish loud from soft sounds?
pitch
timbre
frequency
amplitude

Explanation:

Pitch is related to frequency and determines how high or low a sound is. Timber is the quality of a sound that distinguishes different sources. Frequency is the number of vibrations per second. Amplitude is the maximum displacement of a sound - wave. A larger amplitude corresponds to a louder sound, while a smaller amplitude corresponds to a softer sound.

Answer:

D. Amplitude