The metal, which is a constituent of vitamin B12 is____________...? Mcqs

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The metal, which is a constituent of vitamin B12 is____________...?

(A) Iron
(B) Magnesium

(C) Zinc
(D) Cobalt

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Latest MCQs

In plants, water and minerals are transported from roots to the leaves by ____...?

(A) Phloem
(B) Xylem

(C) Stomata
(D) Cambium

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Which of the following material is more elastic...?

(A) Rubber
(B) Glass

(C) Steel
(D) Wood

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A pulsar is actually a___________...?

(A) Black hole
(B) White dwarf

(C) Red giant
(D) Neutron star

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Which three conditions are necessary for seed germination...?

(A) Water, Light, and Humidity
(B) Water, Nutrients, and Darkness

(C) Water, Carbon Dioxide, and Pressure
(D) Water, Oxygen, and Proper Temperature

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Metals are good conductors of electricity because they have free _____...?

(A) Electrons
(B) Protons

(C) Neutrons
(D) Photons

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Which of the following planets has the smallest diameters_____...?

(A) Mercury
(B) Marx

(C) Pluto
(D) Venus

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Oranges are rich source of____________...?

(A) Carbohydrates
(B) Fats

(C) Proteins
(D) Vitamins

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The importance of perspiration is to ___________...?

(A) Eliminate body odours
(B) Improve the general health

(C) Open the pores in the skin
(D) Regulate body temperature

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The velocity of a satellite is _____ of its mass....?

(A) Independent
(B) Dependent

(C) Equal
(D) Double

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