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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Weather describe the condition of ______ at any one time....?

(A) The earth
(B) The land surface

(C) The atmosphere
(D) The ionosphere

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Orange belongs to the family...?

(A) Malvaceae
(B) Rutaceae

(C) Composite
(D) None of These

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Which of the following pair is incorrect...?

(A) Sparrow : Trumpet
(B) Horse : Neigh

(C) Monkey : Polytities
(D) Owl : Chirp

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Orbital period of the planet Mercury around the sun is _____________...?

(A) 88 days
(B) 365 days

(C) 2 years
(D) 98 days

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WBCs are also called as _________...?

(A) Leukocytes
(B) Lymphocytes

(C) Nucleotides
(D) Erythrocytes

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The Sun produces most of its energy by_____________...?

(A) Nuclear fusion
(B) nuclear fission

(C) Burning hydrogen
(D) None of these

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The defect in which the image is formed beyond the retina is called...?

(A) Long-sightedness
(B) Blind spotting

(C) Short-sightedness
(D) Image defect

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The speed of sound in aluminium is _____...?

(A) 5620 m/s
(B) 6420 m/s

(C) 7220 m/s
(D) 4820 m/s

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Two resistances of 6 Ω and 12 Ω are connected in parallel. Their net resistance is ______...?

(A) 7 Ω
(B) 6 Ω

(C) 4 Ω
(D) 5 Ω

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