Voice can reveal things about the speaker and the message. is a listener's perception of how high or low a sound is, is the basic tone that an individual uses most of the time, and is the pitch movement within an utterance.

Pitch; habitual pitch; intonation.

Explanation:

A sound is the form of energy which produces the sensation of hearing in organisms.

A sound is judged on three properties:

Pitch is the rate of vibration of the sound source. As the frequency of sound increases ,the pitch also increases and as the frequency decreases pitch also falls.

Normal pitch of voice that is generally used by a person while usual speaking is called his habitual pitch.

The change in pitch while speaking is called intonation, it gives an impressive tonal quality to the speech.

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: