Plants do exchange of gases through ______...? Mcqs

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Plants do exchange of gases through ______...?

(A) Roots
(B) Stomata

(C) Stem
(D) All of these

Latest MCQs

The term ‘white coal’ is sometimes referred to which of the following...?

(A) Geothermal energy
(B) Wind energy

(C) Hydroelectricity
(D) Biomass energy

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The distance of longitude represents how many minutes difference in time...?

(A) 10 minutes
(B) 4 minutes

(C) 15 minutes
(D) 1 minute

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If a spring stretches easily then its spring constant has _____...?

(A) Large value
(B) Small value

(C) Constant Value
(D) Both (a) and (b)

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The most densest substance on the Earth is __________....?

(A) Platinum
(B) Copper

(C) Steel
(D) Osmium

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How long does the Earth take to complete one rotation...?

(A) 23 hours 59 minutes 59 seconds
(B) 24 hours 00 minutes 00 seconds

(C) 23 hours 56 minutes 04 seconds
(D) 24 hours 01 minutes 01 seconds

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A substance which produces hydroxyl ion (OH)- in the aqueous solution is called...?

(A) Oxidizing agent
(B) Reducing agent

(C) Base
(D) Acid

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One gene interferes with another at a different locus is called...?

(A) Codominance
(B) Epistasis

(C) Pleiotropy
(D) None of these

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If input of a NOT gate is "1" then its output is _____...?

(A) 1
(B) 0

(C) May be 1 or may be 0
(D) None of these

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Which one of the following is not a sign of chemical change...?

(A) No change in composition
(B) A release of gas

(C) Change in colour, temperature, smell
(D) Production of a new material

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