(A) Heating and Chemical Reduction
(B) Heating and Oxidation
(C) Heating and Electrolysis
(D) None of these
The answer is (A) Heating and Chemical Reduction
Why does the sky appear blue?
(A) Due to scattering of light from atmosphere
(B) Due to color of cans in the atmosphere
(C) Due to the reflection from Earth’s Surface
(D) None of these
The answer is (A) Due to scattering of light from atmosphere
The term Light year refers to:
(A) Time that earth takes to complete one revolution around the Sun
(B) Distance of earth from the sun at which intensity of light is maximum
(C) Speed of light expressed in miles per year
(D) None of these
The answer is (D) None of these (Unit of Distance)
Contour is a measure of?
(A) Topography
(B) Rain Fall
(C) Temperature
(D) Pressure
The answer is (A) Topography
Deficiency of Vitamin-A results in ___?
(A) Night Blindness
(B) Rickets
(C) Scurvy
(D) Hair Fall
The answer is (A) Night Blindness
Solid which undergoes sublimation is?
(A) Argon
(B) Iodine
(C) Sodium Chloride
(D) Water
The answer is (B) Iodine
Severe Deficiency of Vitamin-D results in ____?
(A) Scurvy
(B) Rickets
(C) Night Blindness
(D) None of these
The answer is (B) Rickets
Which of the following does not contain cell wall?
(A) Fungi
(B) Algae
(C) Amoeba
(D) Bacteria
The answer is (C) Amoeba
Which is the outermost planet in the solar system?
(A) Mercury
(B) Pluto
(C) Neptune
(D) Uranus
The answer is (D) Uranus
The gas used in a refrigerator to cool water is
(A) Nitrogen
(B) Carbon
(C) Methane
(D) Tetrafluoroethane
The answer is (D) Tetrafluoroethane