-Noise is
an unwanted noise
a source of stress
all of the above
Following contributes the maximum noise
transport sector
industrial and construction machinery
none of the above
Sound is measured in
Hertz
Decibel
ppm
-Noise pollution can cause
Hearing loss
lack of concentration
anxiety
insomnia
A sound meter is an instrument used to measure the intensity of noise
Some tips to protect our ears are:
Don't listen to music too loud and too long
Use headphones instead of earphones
Try 60/60 rule
Roadways noise can be reduced by
Use of noise barriers
Use bike and public transport
Personal steps against noise pollution are:
Avoid use vacuum cleaner, washing machine at night
Do not honk if it is not necessary.
Don’t shout.
Don't sing.
Don't play music loudly
To soundproof means: INSONORIZAR
The threshold of pain ( umbral del dolor) begins with more than 120 db.
