Decrease of the size (length, area and volume) of a body due to change in temperature is called...? Mcqs

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Decrease of the size (length, area and volume) of a body due to change in temperature is called...?

(A) Thermal Expansion
(B) Thermal Contraction

(C) Thermal Density
(D) Thermal Compression

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Sound travels_______ in solid materials then liquid...?

(A) Constant
(B) Slowest

(C) Fastest
(D) None of these

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Which are containing air, liquid or food particles found in the cytoplasm and are small and numerous...?

(A) Vacuoles
(B) Ribosomes

(C) Lysosomes
(D) Mitochondria

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When our sun reaches the end of its red giant phase, it will turn into a___________...?

(A) Supernova
(B) White Dwarf

(C) Black Hole
(D) Neutron Star

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Electric motor was invented by __________ ...?

(A) Michael Faraday
(B) Oliver Evans

(C) Thomas Edison
(D) Horace Day

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Which of the following statements is true when we see ‘rainbow’ ...?

(A) We face sun and raindrops
(B) The Sun remains behind us and we face raindrops

(C) In light rainfall, we face Sun
(D) The sky remains clear and the sun is at lower position in the sky

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The sky appears blue because the earth’s atmosphere __________...?

(A) Scatters blue light
(B) Reflects blue light

(C) Transmits blue light
(D) Has actual blue cover

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Amino acids are building blocks of ______...?

(A) Nucleic acids
(B) Protein

(C) Vitamins
(D) Lipid

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Sound is a form of _____...?

(A) Electrical energy
(B) Thermal energy

(C) Mechanical energy
(D) Chemical energy

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What is the common name for the drug acetyl salicylic acid...?

(A) Paracetamol
(B) Analgin

(C) Aspirin
(D) Penicillin

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