Asound that measures 30 decibels is how many times louder than the theshold of hearing

Decibels measure  intensity. If you whisper in an empty room it will measure  between 0 and 1 db. This indicates the intensity of sound is minimal. This is considered the threshold of hearing.

A sound that measures 30 decibels is a 1000 times louder than the the threshold of hearing. An example of this is the noise of a regular computer produces between 20-40 dB.

A sound that measures 30 decibels is 1.5 times louder than the threshold of hearing as normal hearing threshold of human hearing is 20 decibels.

in which two ways were the northeast woodland indians and the southeast indians similar? both collaborated to form the iroquois confederacy. both cultivated the crops of corn, beans, and squash. both lived in rich environments of swamps and rivers. both lived in tree-bark dwellings called wigwams. both expected men to hunt, while women farmed.

imma say false because i dont know anything about this.