What happens when water solidifies as ice on cooling from 4°C to 0°C...? Mcqs

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What happens when water solidifies as ice on cooling from 4°C to 0°C...?

(A) Its volume increases and density decreases
(B) Its volume increases and density increases

(C) Its volume decreases and density decreases
(D) Its volume decreases and density increases

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Approximately, how many times each day do our heart valves open and close normally...?

(A) 10,000
(B) 1,00,000

(C) 1,50,000
(D) 2,00,000

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The study of geographical areas, plants and animal distribution is called_________...?

(A) Cosmetology
(B) Chorology

(C) Osteology
(D) Mycology

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The fourth state of matter is...?

(A) Water
(B) Salts

(C) Vapours
(D) Plasma

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Which planet is called “red planet”...?

(A) Mars
(B) Venus

(C) Jupiter
(D) Saturn

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The type of glass used in making lenses and prism is___________...?

(A) Pyrex glass
(B) jena glass

(C) Flintglass
(D) Soft glass

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The study of the structure of the body is called _______ ...?

(A) Anthropobiology
(B) Anatomy

(C) Aphnology
(D) Apiology

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How many time zones are there in the world...?

(A) 22
(B) 12

(C) 16
(D) 24

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How many pounds in a kg...?

(A) 2.20
(B) 2.30

(C) 2.40
(D) 2.50

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How many moons does Neptune have...?

(A) 63
(B) 12

(C) 19
(D) 14

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