At what time of day is the relative humidity normally at a minimum ________________ ...? Mcqs

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At what time of day is the relative humidity normally at a minimum ________________ ...?

(A) When the air temperature is highest
(B) Just before sunrise

(C) About midnight
(D) When the air temperature is lowest

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Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________...?

(A) Radiation fog
(B) Evaporation (mixing) fog

(C) Advection fog
(D) Upslope fog

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Which one is a scalar quantity...?

(A) Time
(B) Force

(C) Velocity
(D) Acceleration

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A glass chimney stops an oil lamp from smoking because:...?

(A) It increases the supply of oxygen to the flame by convection
(B) The heat produced ensures complete

(C) Both to these
(D) Neither of these

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Which of the following is the major constituents of LPG...?

(A) methane
(B) ethane

(C) hydrogen
(D) butane

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The energy which is received from heat is known as...?

(A) Sound Energy
(B) Thermal Energy

(C) Kinetic Energy
(D) Potential Energy

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The angle of incidence of a ray for which the angle of refraction is 90° is called ____...?

(A) Refracted Angle
(B) Critical Angle

(C) Incident Angel
(D) Angle of Deviation

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Which mineral is the present in whole wheat, bananas, peas, prunes, oysters, liver, kidney, grains and legumes...?

(A) Copper
(B) Magnesium

(C) Sodium
(D) Iron

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Object which allows some light to travel through it is called:...?

(A) translucent
(B) opaque

(C) transparent
(D) crystal clear

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When a light ray enters from a denser medium to a rare medium, it bends ______...?

(A) Perpendicular to normal
(B) Parallel to normal

(C) Toward normal
(D) Away from normal

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