3. Jenny went to the Ear Nose Throat (ENT) specialist for the ear chele
cause of her hearing problem?
a. Dirty Environment b. Noise Pollution
C. Water Pollution
d. Air Pollution
4. Motorcycle, ship and airplane produced noise. Which among the causes
of noise belongs?
a. Construction Site b. Entertainment
c. Neighbor
d. Transport
5. It is an unwanted and harmful noise coming from different sources.
a. Air Pollution
b. Water Pollution
c. Noise Pollution
d. Dirty Environment
6. Noise is
a. an unwanted noise b. an irritant
C. a source of stress d. all of the above
7. Sound is measured in
a Hertz b. Decibel
C. ppm d. none of the above
8. The level of sound during conversation is
a. 20 dbA b. 40 dbA
C. 60 dbA d. 80 dbA
9. Allowed noise level by WHO in residential areas is
a. 25 dB b. 50 dB
C. 75 dB d. 100 dB
10. Research suggest that noise pollution is the highest in income neight
a. Low
b. medium
c. higher d. all of the above​