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Water Pollution MCQ (Multiple Choice Questions) PDF Download
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Water Pollution Questions and Answers PDF Download
What is the fourth step of raw water treatment?
- sedimentation
- coagulation
- filtration
- chlorination
Step of sewage water treatment in which sewage is placed in tanks and aerated with large blowers is called
- primary sewage treatment
- secondary sewage treatment
- activated sludge treatment
- chlorination
What is the second step of raw water treatment?
- sedimentation
- coagulation
- filtration
- chlorination
Step of sewage water treatment in which there are some aeration and organic material is converted to inorganic materials is called
- primary sewage treatment
- secondary sewage treatment
- activated sludge treatment
- chlorination
What is the first step of raw water treatment?
- sedimentation
- coagulation
- filtration
- chlorination
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