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                              Q:
                           
                           
                                                      | A) Chlorine & Fluorine | B) Fluorine & Iodine | 
| C) Chlorine & Hydrogen peroxide | D) Fluorine & Iodine | 
                              Answer:   C) Chlorine & Hydrogen peroxide
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
Removing the contaminents if any in the water which causes harm to our health is involved in the purifying of water.
This process involves chemicals. Chloramines, Hydrogen peroxide, Iodine are the chemicals which are used in purifying water.
 
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