An iron nail/steel rod can be magnetize by...? Mcqs

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An iron nail/steel rod can be magnetize by...?

(A) By passing an electric current around it
(B) By heating it on a high flame

(C) By hammering
(D) By keeping it with an iron rod

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The snow on the mountains does NOT melt all at once when it is heated by the sun because:...?

(A) it becomes very hard
(B) it reflects most of the heat from the sun

(C) it has a low specific heat capacity
(D) it has a high latent heat of fusion

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Identify the monoatomic molecule among the following...?

(A) Helium
(B) Ozone

(C) Hydrogen
(D) Nitrogen

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Carbon dioxide enters into plants through ______...?

(A) Roots
(B) Leaves

(C) Petals
(D) Stomata

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Total number of moons in entire Solar System are:__________...?

(A) More than 100
(B) More Than 200

(C) More than 300
(D) More than 400

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Which Harmone contain iodine...?

(A) Thyroxine
(B) Insulin

(C) Adrenaline.
(D) None of these

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Which animal has four hearts...?

(A) Squid
(B) Octopus

(C) Cuttlefish
(D) Hagfish

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Two similar chromosomes in a cell which are similar in shape, size and position of centromere called _______...?

(A) Chromatids
(B) Arms

(C) Homologous
(D) Homology

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Each mole of ATP store energy...?

(A) 7.3 kcal/mole
(B) 7.3kj/mole

(C) 17.3kcal/mole
(D) 17.3kj/mole

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Global winds towards western direction are known as:...?

(A) Trade winds
(B) Western winds

(C) Reynolds wind
(D) None of these

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