Which of the following method is adopted to remove salt from sea water?
(A) sublimation
(B) Evaporation
(C) crystallization
(D) distillation
Which of the following gas is not present in the atmosphere?
(A) Nitrogen
(B) Helium
(C) Chlorine
(D) Krypton
Which acid is used as a dehydrating agent?
(A) hydrochloric acid
(B) sulfuric acid
(C) acetic acid
(D) nitric acid
Ozone layer is found in
(A) Thermosphere
(B) Stratosphere
(C) Troposhere
(D) Mesophere
Maximum amount of gas found in air is
(A) Oxygen
(B) Carbon dioxide
(C) Hydrogen
(D) Nitrogen
Aim of pulse Polio programme is
(A) Treatment of Polio
(B) Stop paralytic effect of Polio
(C) Complete eradication of Polio
(D) All of these
Which is the principle of Learning Environment study?
(A) Principle of necessity
(B) Principle of utility
(C) Principle of relationship with life
(D) All of these
(A) Wenologist
(B) Grapologist
(C) Oenologist
(D) None
The plant which grows under water stress conditions of deserts are ?
(A) Sciohytes
(B) Epiphytes
(C) Xerophytes
(D) Heliophytes
Which of the following grain was first used by human?
(A) Ragi
(B) Wheat
(C) Barley
(D) Oat
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