The cooling fins at the back of refrigerator are made of black and rough surface because ____...? Mcqs

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The cooling fins at the back of refrigerator are made of black and rough surface because ____...?

(A) They are good conductors of heat
(B) They are good radiators of heat

(C) They are good insulators of heat
(D) They are not important for heat transfer

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The Virus of AIDS affects the growth of_____________...?

(A) Hemoglobin
(B) RBCs in blood

(C) T cells in blood
(D) Grey Cells in blood

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Who discovered blood circulation...?

(A) Carl Linnaeus
(B) Francis Crik

(C) Robert. Brown
(D) William Harvey

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Which among the following is not the stage of mitosis...?

(A) Prophase
(B) Metaphase

(C) Cytophase
(D) Anaphase

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Botany is also called _______ ...?

(A) Phytology
(B) Phycology

(C) Pedology
(D) Plantophyta

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Which type of climates of world has dry summer & wet winter ...?

(A) Western European type
(B) Mediterranean type

(C) Equatorial type
(D) Tundra type

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Fathom is the unit of measurement for__________...?

(A) Sound
(B) Depth

(C) Energy
(D) Time

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What is the range, in hertz, of the normal human hearing...?

(A) 10 Hz to 10 kHz
(B) 20 Hz to 20 kHz

(C) 2000Hz
(D) 40 Hz to 40 kHz

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Carbon dating is used for the estimation of the age of ____...?

(A) Rocks
(B) Fossils

(C) Soil
(D) Water

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As temperature increases, initially the rate of reaction will _____...?

(A) Decrease
(B) Remain constant

(C) Fluctuate
(D) Increase

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