(a) Sterols

(b) Cardiolipin

(c) Sialic acid

(d) All of the above

(a) Cytoplasm

(b) Lysosomes

(c) Mitochondria

(d) Endoplasmic reticulum

(a) Measles

(b) Typhoid

(c) Cholera

(d) Hepatitis

(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