The percentage of air pollution caused due to smoke:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

2. The extent of darkness caused due to smoke can be determined by the help of:

   A. Smoke filters
   B. Ringelmann’s charts
   C. Horizontal microscopes
   D. All of these

3. Air pollution is caused by:

   A. Automobile exhausts
   B. Radioactive substances
   C. Smoke
   D. All of the above

4. Air pollution is maximum caused by:

   A. Sewage and industrial effluents
   B. Household detergents and pesticides
   C. Automobile exhausts and chemicals from industry
   D. Sewage and pesticides

5. Air pollution is not caused by:

   A. Thermal power plant
   B. Diesel engine
   C. Hydroelectric power station
   D. Pollen grain

6. The ‘blue baby syndrome’ is caused due to pollution by:

   A. Chlorides
   B. Cyanides
   C. Fluorides
   D. Nitrates

7. Minamata diseased was caused due to water pollution by:

   A. Lead
   B. Cyanides
   C. Methyl isocyanate
   D. Mercury

8. Thermal pollution in water bodies is caused due to discharge of:

   A. Hot water from power plants
   B. Hot chemicals from industries
   C. Waste from mines
   D. Waste from agricultural fields

9. Air pollution is caused by:

   A. The smoke, gases and fumes coming out of the factory chimneys
   B. The transport vehicles badly pollute the air
   C. Both (a) & (b)
   D. None of these

10. In big cities, air pollution is mainly due to:

    A. Burning of fossil fuel
    B. Thermal power plants
    C. Sewage
    D. Suspended particles