What will happen if drainage is not proper to dispose off sewage?
Both (B) and (C)
Explanation for the correct answer:
(D) Both (B) and (C):
Sewage is the wastewater from homes as well as industries, offices, hospitals, and other places.
(B) Disease will spread: if drainage is not proper to dispose off sewage, then the sewage water might mix with drinking water and other freshwater sources and spread many diseases.
(C) Water will get polluted: if drainage is not proper to dispose off sewage, then the sewage water can mix with fresh water sources and even percolate into the groundwater, thus polluting those.
Explanation for the incorrect answer:
(A) We will get pure water: if sewage water is not disposed off properly, it will pollute the freshwater sources, hence making pure water scarce.
Therefore, the correct answer is (D) Both (B) and (C).