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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Which of the following is used as jet fuel...?

(A) Kerosene oil
(B) Fuel oil

(C) Petrol
(D) Diesel oil

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Which fruit can a diabetic patient eat freely...?

(A) Apple
(B) Banana

(C) Orange
(D) None of these

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What are the reactants in the reaction: CH4 + 2O2 → CO2 + 2H2O...?

(A) Methane and Oxygen
(B) Carbon dioxide and Water

(C) Hydrogen and Oxygen
(D) Carbon and Water

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Rainbow is formed due to ______...?

(A) Emission of light
(B) Absorption of light

(C) Refraction of light
(D) Transmission of sound

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Sound travels slowest in which one of the following...?

(A) Air
(B) Water

(C) Steel
(D) Diamond

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Which is known as ‘Lifeblood of industries’...?

(A) Finance
(B) Transport

(C) logistic
(D) Supplies

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The side view mirrors of vehicles are of which type of mirrors...?

(A) Convex
(B) Concave

(C) Plane
(D) Inverted

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Which statement is incorrect about chemical reactions...?

(A) States of matter does not change during chemical reactions
(B) Chemical reactions produce new substances

(C) Chemical reactions occur with the absorption or emission of energy
(D) Chemical reactions may be fast, moderate or slow

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Which vegetable is also a flower __________...?

(A) Lady Finger
(B) Broccoli

(C) Tomato
(D) None of these

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