Correct Answer : Option (C) - The science of raising worms
Correct Answer : Option (A) - DNA
Correct Answer : Option (D) - Chlorine
The technique of purification of drinking water by use of compressed liquefied chlorine gas was developed by a British officer in the Indian Medical Service, Vincent B.
Correct Answer : Option (A) - less on 0.7 ppm
Correct Answer : Option (B) - Iron oxide
That are coated with fine particles of a magnetic substance, usually an oxide of iron, cobalt, or chromium.
Correct Answer : Option (C) - Haematite
Iron is mostly obtained from minerals hematite and magnetite. In smaller degrees, it can also be obtained from the minerals taconite, limonite and siderite, according to Jefferson Lab.
Correct Answer : Option (A) - Zinc
Correct Answer : Option (B) - Slip
Correct Answer : Option (D) - Fungi
A mushroom is the reproductive structure produced by some fungi. It is somewhat like the fruit of a plant, except that the "seeds" it produces are in fact millions of microscopic spores that form in the gills or pores underneath the mushroom's cap.
Correct Answer : Option (A) - Myopia