[amp_mcq option1=”Rivers” option2=”Seas” option3=”Lakes” option4=”None of these” correct=”option1″]<\/p>\n
The correct answer is: A. Rivers<\/strong><\/p>\n Sludge banks are formed when sewage is disposed of in rivers. Sewage is a mixture of human waste, industrial waste, and stormwater runoff. When sewage is dumped into a river, it can cause a number of problems, including:<\/p>\n To prevent sludge banks from forming, it is important to treat sewage properly before it is released into rivers. Sewage treatment plants remove harmful bacteria and viruses from the sewage, and they also help to remove solid waste. Properly treated sewage can then be safely released into rivers without causing any harm to the environment.<\/p>\n Option B, seas, is incorrect because sludge banks are not typically formed in seas. Seas are much larger than rivers, and they have a much higher volume of water. This means that sewage is more likely to be diluted in seas, and it is less likely to settle out and form sludge banks.<\/p>\n Option C, lakes, is incorrect because sludge banks are not typically formed in lakes. Lakes are smaller than seas, but they have a lower volume of water. This means that sewage is less likely to be diluted in lakes, and it is more likely to settle out and form sludge banks. However, sludge banks are more likely to form in lakes that are located in areas with a lot of human activity, such as cities and towns. This is because these lakes are more likely to receive sewage runoff from homes and businesses.<\/p>\n Option D, none of these, is incorrect because sludge banks are formed when sewage is disposed of in rivers.<\/p>\n","protected":false},"excerpt":{"rendered":" [amp_mcq option1=”Rivers” option2=”Seas” option3=”Lakes” option4=”None of these” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[650],"tags":[],"class_list":["post-7690","post","type-post","status-publish","format-standard","hentry","category-waste-water-engineering","no-featured-image-padding"],"yoast_head":"\n\n