Which of the following option is incorrect about the sludges?

Related MCQs

• Which of the following statement is incorrect about the demineralised water?
• The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?
• The presence of which of the following indicates old pollution?
• The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?
• Which of the following disease is caused due to lack of nitrates?
• Which of the following is the physical monitoring of the lake?
• which of the following does not include in the monitoring of river pollution?
• Which one of the following is the basic indicator of river health?
• On which of the following does the self purification process does not depend?
• Which of the following sewerage systems carry domestic and industrial wastewater?