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Question
Measurement of water pollution is made by
Measurement of water pollution is made by
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Solution
The correct option is D All of the above
The organisms like coliform bacteria such as Escherichia coli and Pseudomonas aeruginosa are commonly found in the human or animal and their presence in water may suggest the presence of sewage. pH ranges from 0 (very acidic) to 14 (very basic), with 7 being neutral. Most waters range from 6.5 to 8.5. Changes in pH can affect how chemicals dissolve in the water and whether organisms are affected by them. High acidity can be deadly to fish and other aquatic organisms. Water samples may also be examined by methods including biochemical oxygen demand (BOD), chemical oxygen demand (COD), nutrients (nitrate and phosphorus compounds). BOD depicts the number of microorganisms present in the water on the basis of the presence of organic waste. Thus, the correct answer is option D.
The organisms like coliform bacteria such as Escherichia coli and Pseudomonas aeruginosa are commonly found in the human or animal and their presence in water may suggest the presence of sewage.
pH ranges from 0 (very acidic) to 14 (very basic), with 7 being neutral. Most waters range from 6.5 to 8.5. Changes in pH can affect how chemicals dissolve in the water and whether organisms are affected by them. High acidity can be deadly to fish and other aquatic organisms.
Water samples may also be examined by methods including biochemical oxygen demand (BOD), chemical oxygen demand (COD), nutrients (nitrate and phosphorus compounds). BOD depicts the number of microorganisms present in the water on the basis of the presence of organic waste. Thus, the correct answer is option D.
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