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.
In their 1943 meeting at Casa Blanca, Allied leader decided to invade Italy.
Answer:
B
Explanation:
She believed that woman should be educated and work to help men in household
Violent outburst in many cities in the US