Root hair is long, thin and tubular structure, it increases surface area which increases the _____...? Mcqs

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Root hair is long, thin and tubular structure, it increases surface area which increases the _____...?

(A) Rate of absorption of water
(B) Rate of photosynthesis

(C) Rate of respiration
(D) Rate of growth

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Vitamin B1 is also known as____________...?

(A) Riboflavin
(B) Retinol

(C) Thiamine
(D) Niacin

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Rate of evaporation of a liquid can be increased by _____...?

(A) Increasing humidity
(B) Decreasing temperature

(C) Increasing its boiling point
(D) Decreasing atmospheric pressure

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Which one of the following is not a disadvantage of friction...?

(A) Energy loss
(B) Fasteners

(C) Wear and Tear
(D) Speed limit

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Combustion can not take place without __________...?

(A) Hydrogen
(B) Air

(C) Oxygen
(D) Argon

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Monsoon is caused by____________________...?

(A) Seasonal reversal of winds
(B) Revolution of earth

(C) Movement of clouds
(D) Rise in temperature

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Which of these is NOT a form of energy...?

(A) Heat
(B) Light

(C) Temperature
(D) Electricity

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Water percentage in plasma is _____...?

(A) 80%
(B) 90%

(C) 60%
(D) 70%

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“Elephant” large unit of paper measurement equal to 28 by__________...?

(A) 23 inches
(B) 25 inches

(C) 28 inches
(D) 31 inches

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Chemically finger nails are made up of ____________...?

(A) Carbohydrate
(B) Fats

(C) protein
(D) Starch

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