A liquid disturbed by stirring comes to rest due to
(A) density
(B) surface tension
(C) viscosity
(D) centripetal force
The nuclear particle having no mass and no charge, but only spin is
(A) proton
(B) neutron
(C) meson
(D) electron
Which among the following is used to dilute oxygen in the gas cylinders used by divers?
(A) Krypton
(B) Argon
(C) Helium
(D) Neon
Which one of the following does not form oxyacid?
(A) Sulphur
(B) Chlorine
(C) Nitrogen
(D) Fluorine
The release of which of the following into ponds and wells helps in controlling mosquitoes?
(A) Snail
(B) Crab
(C) Dogfish
(D) Gambusia fish
Light year is a unit of
(A) Time
(B) Distance
(C) Speed of light
(D) Intensity of light
Persons suffering from myopia are advised to use
(A) Convex lens
(B) Concave lens
(C) Plano-convex lens
(D) Plano-concave lens
The ambient air is stable when the ambient lapse rate is
(A) Neutrally stable
(B) Hyper-adiabatic
(C) Sub-adiabatic
(D) Super-adiabatic
Which gas is present in biogas in large percentage?
(A) Moisture (H2O)
(B) Carbon dioxide (CO2)
(C) Methane (CH4)
(D) Hydrogen sulphide (H2S).
Which among the following is not an Enzyme?
(A) Trypsin
(B) Gastrin
(C) Pepsin
(D) Rennin
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