Q. What amount of H₂S causes increased eye problems?

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Q. What is the chemical used to prevent H₂S gas formation from Magnesium hydroxide?

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Q. What is the chemical used to prevent H₂S gas formation from Sodium hydroxide?

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Q. What is the chemical used to prevent H₂S gas formation from Ferric chloride?

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Q. Storm water can even occur as snow melts.

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Q. Which of the following is not a negative effect of storm water?

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Q. Pollutants entering surface waters during precipitation events is termed ________

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Q. Water is recycled into the atmosphere by vegetation through the process called ______

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Q. Stream erosion can be caused by excess ______

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Q. Storm water is a major cause of urban flooding.

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Q. Which of these is a single event?

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Q. What is the amount spent in the UK every year because of flooding?

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Q. When was SWMM developed?

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Q. Which year was the SWMM approved?

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Q. In which of the months does the maximum sewage flow occur in India?

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Q. Which of the following runoff formula is correct w.r.t. Kuitchling formula?

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