Respuesta :
Answer:
Bacteria And Viruses can spread.
Step-by-step explanation:
Sewage is treated for bacteria, chemicals, and much more.
If this is not treated the sewage overflows with harmful bacteria. This gets into the water that we drink and can cause lots of things harm.
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When untreated sewage contaminates water, then Bacteria and Viruses can spread. Thus Option 2: Bacteria and viruses can spread is the answer.
Untreated sewage means the sewage and all the city's waste that goes into the severe is not treated or filtered or further processed.
When such unprocessed and untreated water is directly allowed to enter in the water, it contaminates the water.
Usually, these untreated sewage water and thus the resultant contaminated water causes bacteria and viruses to grow and thus spread.
Thus, when untreated sewage contaminates water, then Bacteria and Viruses can spread.
Learn more here:
https://brainly.com/question/2490932
