“Noises are often annoying, and they may have serious consequences for the human organism. Loud night noises are known to cause dangerous blood-pressure rises in sleepers. Hundreds of thousands of noise measurements have been made with soundmeters. Average conversation among three of four persons in a room registers at 65-70 decibels; piano practice, 75; a roaring lion, 95; Niagara Falls, 95; thunder, 80-100, and an airplane taking off, 115-120 decibels.

Sounds experts have also made detailed studies of familiar noises. Just what is a noise? The generally accepted definition is that it is nonmusical sound. Not all noises are displeasing or harmful.”

Considering the rules for subjectives, mark (V) for true and (F) for false

Human.