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2. Chlorination of potable water is carried out to?

(A) to remove rotten fish smell
(B) killgerms
(C) render harmless minerals present in water
(D) to remove tracts of hydrogen peroxide
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3. What is the study of fishes called?

(A) Etiology
(B) Chronology
(C) Ichthyology
(D) Entomology
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4. Aquaculture refers to?

(A) Culture of fish
(B) Culture of prawn
(C) Culture of sea weeds
(D) Culture of water-living form
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6. Felis domesticus is the scientific name of

(A) Dog
(B) Cat
(C) Horse
(D) Cow

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