Which of the following are the colloidal materials present in domestic sewage?(a) Calcium(b) Sand(c) Ammonia(d) Fecal matterI got this question during an online exam.My question is taken from Environmental Issues in section Environmental Issues of Biology – Class 12

Which of the following are the colloidal materials present in domestic

1.	Which of the following are the colloidal materials present in domestic sewage?(a) Calcium(b) Sand(c) Ammonia(d) Fecal matterI got this question during an online exam.My question is taken from Environmental Issues in section Environmental Issues of Biology – Class 12
Answer» Correct OPTION is (d) Fecal matter The BEST explanation: The substances that do not readily dissolve in water but also are not settled down are known as colloidal substances. They may be filtered out in a Gooch Crucible and CONTAINS fecal matter, bacteria, cloth, and PAPER fibers.

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Which of the following are the colloidal materials present in domestic sewage?(a) Calcium(b) Sand(c) Ammonia(d) Fecal matterI got this question during an online exam.My question is taken from Environmental Issues in section Environmental Issues of Biology – Class 12

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