Malnutrition leads to lack of which?
(A) Vitamin 'A'
(B) Carbohydrate
(C) Vitamin 'C'
(D) Protein
Which metal has the highest melting point?
(A) Osmium
(B) Tungsten
(C) Molybdenum
(D) aluminum
Speed of sound is maximum?
(A) in air
(B) In water
(C) in vacuum
(D) Steel
How does a red rose appear in green light?
(A) yellow
(B) Pink
(C) Black
(D) Red
The function of dynamo is?
(A) Converting electrical energy into mechanical energy
(B) Converting mechanical energy into electrical energy
(C) Converting electrical energy into heat
(D) None of these
What chemical substance is present in bones and teeth, what is it called?
(A) calcium chloride
(B) calcium borate
(C) calcium phosphate
(D) calcium sulfate
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