Answer:
Sounds are higher or lower in pitch according to the frequency of vibration of the sound waves producing them. ... A high frequency (e.g., 880 hertz [Hz; cycles per second]) is perceived as a high pitch and a low frequency (e.g., 55 Hz) as a low pitch.
Explanation:
Its A because there are no other electric, utilities in the area to do the same thing.
The top priority for this key sector of the marine environment is to preserve current options and, in many cases, to rehabilitate degraded coastal systems essential to the early life cycles of many living marine resources that are exploited farther offshore, as adults.
Research indicates that the sexually active teens most likely to have an sti have parents who <span>tell their children about sex and then instruct them to avoid it.
The sexual urges exist on every human being. Telling the children to deny the sexual urges only making it built up until at some point it will explode and exposed the kids into unsafe sex</span>
