Blowing of horns is prohibited near:
a) schools
b) hospitals
c) Masjid
d) all of these
Noise may disturb our:
a) digestive system
b) nervous system
c) respiratory system
d) none of these
The sound travels slowest in:
a) gases
b) solids
c) vacuum
d) none of these
Excessive noise that may harm human health is called……..
a) land pollution
b) air pollution
c) water pollution
d) noise pollution
Thermometer is an instrument which is used for measuring……… PET----- 24/08/2019
a) Temperature
b) Heat
c) Speed
d) Sound
The clinical thermometer has a range from…
NTS PST 24/11/2019 (11:30)
a) 35----420C
b) 30----400C
c) 125--450C
d) 35----500C
