What is the primary source of wastewater in homes?
Question 2
Which of the following is a method of treating wastewater?
Question 3
What is the term for the removal of harmful substances from wastewater?
Question 4
Which of the following is a primary treatment process in a sewage treatment plant?
Question 5
What is the term for the settling down of solid particles in wastewater?
Question 6
Which of the following is a secondary treatment process in a sewage treatment plant?
Question 7
What is the term for the process of adding air to wastewater to allow aerobic bacteria to decompose organic matter?
Question 8
Which of the following is a method of disinfecting treated wastewater?
Question 9
What is the term for the process of killing or removing harmful microorganisms from wastewater?
Question 10
Which of the following is a common method of wastewater disposal in rural areas?
Question 11
What is the term for the decomposition of organic matter in the absence of air?
Question 12
Which of the following is a byproduct of wastewater treatment that can be used as a fertilizer?
Question 13
What is the term for the treated water that is released into natural water bodies after sewage treatment?
Question 14
Which of the following is a method of conserving water?
Question 15
What is the term for the use of treated wastewater for non-drinking purposes such as irrigation and industrial processes?
Question 16
Which of the following is a method to prevent water pollution?
Question 17
What is the term for the introduction of harmful substances into water bodies?
Question 18
Which of the following is a cause of water pollution?
Question 19
What is the term for the gradual decrease in the level of water in underground aquifers?
Question 20
Which of the following is a method to reduce water pollution?
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