What measures can be taken to maintain public health against water-borne diseases?

  • A
    Proper disposal of sewage and excreta.
  • B
    Disinfection of water reservoirs and tanks at regular intervals.
  • C
    Periodic cleaning of water storage tanks.
  • D
    All of the above.

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Megaloblastic anaemia of pregnancy is caused by the deficiency of

Physical barrier = .............. and physiological barrier = .............

Good health results in:

Identify the correct pair of disease and its associated medication.

Match the following Column-$I$ with Column-$II$ and select the correct option.
Column-$I$Column-$II$
$(a)$ Brown rust of wheat$(i)$ Virus
$(b)$ Tobacco mosaic$(ii)$ Bacteria
$(c)$ Black rot of crucifers$(iii)$ Fungi
$(d)$ Red rot of sugarcane$(iv)$ Insects

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