Which of the following is the main characteristic of electromagnets that makes them useful in cranes and doorbells...? Mcqs

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Which of the following is the main characteristic of electromagnets that makes them useful in cranes and doorbells...?

(A) They are very strong
(B) They are permanent

(C) They can be switched on and off
(D) They are very heavy

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Which Gas is included in Fry Chips Packets for safety...?

(A) Nitrogen gas
(B) Carbon dioxide

(C) Oxygen
(D) Hydrogen

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Which lens is used for the correction of long-sightedness...?

(A) Convex lens
(B) Concave lens

(C) Compact lens
(D) Conpave lens

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Bryophytes are ____plants...?

(A) Genotype
(B) Non-vascular

(C) Alleles
(D) Chromosomes

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Milky Way Galaxy in which type...?

(A) spiral
(B) Round

(C) Square
(D) Linear

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In animal meiosis produces _____...?

(A) Gametes
(B) Zygotes

(C) Embryos
(D) Somatic cells

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Each stoma is formed by ______...?

(A) One guard cell
(B) Two guards cells

(C) Three guard cells
(D) Four guard cells

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The number shown above the symbol of element is called...?

(A) Mass Number
(B) Valency

(C) Atomic Number
(D) Oxidation State

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The moon’s surface has been explored by how many astronauts...?

(A) 10
(B) 11

(C) 12
(D) 13

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Which colour has smallest wavelength in the spectrum of white light...?

(A) Red
(B) Blue

(C) Yellow
(D) Violet

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