Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________?

Related Mcqs:

The term Biological Oxygen Demand (BOD) is used in relation to ______________________?

A. Potable water B. Cooling water C. Distilled water D. Industrial effluents...

Pick out the wrong statement?

A. Biological oxygen demand (BOD) is a characteristic and not a constituent of water B. BOD is a measure of the amount of oxygen which will be demanded & used in 5 days by the biological decomposition of the organic matter present in water stream present as food for the living organism C. BOD is … Pick out the wrong statement?Read More...

The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?

A. Pipe vibrations B. Cavitation C. Boundary layer separation D. Fluctuation in liquid flow...

The pH value of oxidised sewage is about_____________________?

A. 1.8 B. 6.2 C. 7.3 D. 13.4...

Ozone is__________________?

A. A primary pollutant B. A secondary pollutant C. Impervious to ultra-violet rays D. Both B. and C....