Hamad Chemical Environmental Engineering 19/08/2021 A. 60 B. 90 C. 105 D. 120 Related Mcqs: Global warming may result in __________________?A. Flood B. Cyclone C. Decrease in food productivity D. All A., B. and C.... Iron & manganese present as pollutant in water cannot be removed by__________________?A. Ion exchange process B. Oxidation followed by settling & filtration C. Lime soda process or manganese zeolite process D. Chlorination... ‘Pneumoconiosis’ is a disease caused by the inhalation of ______________ dust?A. Coal B. Uranium ore C. Iron ore D. Lime... Which of the following is not a source of ozone emission in the atmosphere?A. Refrigerators B. Xerox machines C. Dermatological photo-therapy equipments D. High voltage electrical equipments... What are the methods of treatment & disposal of radioactive wastes ?A. Evaporation & chemical precipitation B. Biological methods & adsorption in ion exchange materials C. Fixing into a solid mass with cement and sinking deep in the sea D. All A., B. & C....
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