What process takes place between particles of ink and particles of water when a drop of ink is added to water...? Mcqs

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What process takes place between particles of ink and particles of water when a drop of ink is added to water...?

(A) Osmosis
(B) Diffusion

(C) Sedimentation
(D) Decomposition

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What happens when you put sand, salt and sawdust in glass of water...?

(A) Salt has dissolved in water
(B) Sand sank to the bottom

(C) Sawdust floated on the top
(D) All of these

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About the requirement of light for germination...?

(A) Some seeds germinate in dark whereas some require light
(B) All seeds germinate in dark

(C) All seeds germinate in light
(D) None

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__________ Protect us from diseases...?

(A) Vitamins
(B) minerals

(C) Carbohydrates
(D) None of these

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The sky appears blue because the earth’s atmosphere __________...?

(A) Scatters blue light
(B) Reflects blue light

(C) Transmits blue light
(D) Has actual blue cover

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If we reverse the direction of electric current, then the direction of the magnetic field will be...?

(A) Reversed
(B) Remain same

(C) Become tangent
(D) Become normal

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The percentage of blood cells in the Blood of human body is _________...?

(A) 40%
(B) 45%

(C) 50%
(D) 60%

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Materials for rain-proof coats and tents owe their water proof properties to________...?

(A) Surface tension
(B) Viscosity

(C) Specific gravity
(D) Elasticity

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What is unit of conductivity...?

(A) Ohm
(B) Watt

(C) mho
(D) None of these

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Which component of diet helps in preventing constipation ...?

(A) Proteins
(B) Fats

(C) Fiber
(D) Carbohydrates

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