Contents

Gaseous pollutants are …………
a) oxides of sulphur                           

b) VOCs
c) oxides of nitrogen                          

d) all of these

d

Explanation:VOCs stand for “volatile organic compounds”.



Gaseous pollutants are …………
a) oxides of sulphur                           

b) VOCs
c) oxides of nitrogen                          

d) all of these

d

Incineration of waste materials converts the waste into…………
a) ashes                                

b) flue gases 
c) heat                                                   

d) all of these

d

Explanation:Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials



The ash is mostly formed by……constituents of the waste and form solid lumps.
a) inorganic                                        

b) organic
c) both a & b                                       

d) all of these

a

The flue gases include……and large amount of particulate matters.
a) CO2                                                   

b) CO
c) SO2                                                    

d) all of these

d

Incinerators reduces the solid mass of the original waste by 80 to…………
a) 85% 

b) 90%                  

c) 95%  

d) 98%

a