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Which plays an important role in depletion of ozone layer?
Oxides of sulphur Oxides of carbon Oxides of nitrogen None of these Submitted by :- Muhammad Nawaz
Which of the following is the most hazardous metal pollutant of automobile exhaust?
Lead Tin Cadmium Mercury Submitted by :- Muhammad Nawaz
Which health effect is caused by lead?
Neurotoxicity Cancer Hypertension Kidney damage. Submitted by :- Muhammad Nawaz
Which statement is not related with nitric oxide?
It is a colorless and odorless gas It is produced largely by fuel combustion It is a brown pungent gas…
Which pollutant is not secondary pollutant?
SO2 NO2 SO3 Peroxyacetyl nitrate (PAN) Submitted by :- Muhammad Nawaz
Which pollutant is not primary pollutant?
Ash SO3 Fumes Smoke Submitted by :- Muhammad Nawaz
The reduction in ozone layer would lead to
Temperature changes Increase in UV radiation on earth Cancer All of these Submitted by :- Muhammad Nawaz
Chloroflororocarbons (CFC) are widely used as coolants in
Air conditioners Aerosol propellants Clearing solvents All of these Submitted by :- Muhammad Nawaz
Ozone filters out radiation below?
1000 Å 2000 Å 4000 Å 3000 Å Submitted by :- Muhammad Nawaz
Which gas defends us form harmful effect of UV radiation?
A. O3 B. NO2 C. CO D. SO₂ Submitted by :- Muhammad Nawaz