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Question

Sewage from our homes as well as from hospitals are likely to contain many undesirable pathogenic microorganisms, and its disposal into a water body without proper treatment may cause the outbreak of serious diseases, such as
a. Dysentery
b. Common cold
c. Typhoid
d. Pneumonia
e. Jaundice
f. Cholera

A
a, c, e and f
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B
b, c, d and f
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C
a, b, c and e
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D
a, b, c, e and f
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Solution

The correct option is A a, c, e and f
Sewage
Sewage and hospital discharge have the potential to contaminate the water to a great extent.
Dysentery, typhoid, jaundice and cholera all are communicable diseases which can be easily transmitted through contaminated water.
So, proper water treatment including its disinfection is very necessary to avoid infections by the pathogens present in them.
Pathogens causing diseases like pneumonia and common cold are transmitted through air and not water.

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