Detection of water pollution Which gas dissolved in water is detected
(A) C2
(B) Oxygen
(C) Carbon dioxide
(D) none
How many crore liters of water is getting polluted daily in Delhi?
(A) 86 do letters
(B) 96 crore liters of water
(C) 76
(D) 95
Which causes the most water pollution?
(A) agricultural water pollution
(B) agricultural water pollution
(C) noise pollution
(D) all
When did the engine of BS-4 great technology start?
(A) 2018
(B) 2017
(C) 2016
(D) 2015
The unit of measurement of which is a decibel?
(A) Sound key
(B) Wind Key
(C) Water Key
(D) none
How many decibels of sound is fatal?
(A) 120
(B) 140
(C) 150
(D) 125
How many decibels of sound can damage the human ear?
(A) more than 90 decibels
(B) more than 80 decibels
(C) more than 60 decibels
(D) none
How many decibels of noise should be included in noise pollution?
(A) more than 45 degree decibel
(B) more than 50 decibels
(C) more than 55 degree decibels
(D) none
Whose sound is 50 decibels?
(A) loud talk
(B) normal conversation
(C) sleep-disturbing sound
(D) none
What is called water pollution?
(A) Polluted air
(B) Polluted water
(C) Polluted air
(D) all
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