(a) EAU Formazin Attenuation Units
(b) FNU- Formazin Nephelometric Unit
(c) NTU – Nephelometric Turbidity Units
(d) All of the above
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(a) EAU Formazin Attenuation Units
(b) FNU- Formazin Nephelometric Unit
(c) NTU – Nephelometric Turbidity Units
(d) All of the above
(a) Independent of suspended solids
(b) Sum of total solids and suspended solids
(c) Difference between total solids and suspended solids
(d) All of the above
(a) Brine water
(b) Freshwater
(c) Slightly saline
(d) Moderately saline
(a) Calcium sulphate
(b) Magnesium sulphate
(c) Magnesium chloride
(d) Magnesium carbonate
(a) 0 to 30 milligrams of CaCO3 per litre
(b) 30 to 60 milligrams of CaCO3 per litre
(c) 60 to 90 milligrams of CaCO3 per litre
(d) 90 to 120 milligrams of CaCO3 per litre
(a) Leprosy
(b) Trachoma
(c) Conjunctivitis
(d) All of the above
(a) Carbon
(b) Nitrogen
(c) Phosphorus
(d) All of the above
(a) Floods
(b) Fertilizers
(c) Industrial waste
(d) Both b and c
(a) Typhoid
(b) Cholera
(c) Diarrhoea
(d) All of the above
(a) Osmosis
(b) Ion exchange
(c) Lime softening
(d) Both b and c