Which is the hardest substance in the human body...? Mcqs

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Which is the hardest substance in the human body...?

(A) Tooth enamel
(B) Skull

(C) Knee cap
(D) Rib

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Source: This question is taken from the Everyday Science

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Which of the following occurs when light passes through a substance unchanged...?

(A) Transmission
(B) Reflection

(C) Absorption
(D) Refraction

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Source: This question is taken from the Everyday Science

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Which of the following is the hardest substance...?

(A) Copper
(B) Diamond

(C) Iron
(D) Silicon

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Source: This question is taken from the Everyday Science

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The most densest substance on the Earth is __________....?

(A) Platinum
(B) Copper

(C) Steel
(D) Osmium

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Source: This question is taken from the Everyday Science

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Chlorophyll is a green substance that is present in _____...?

(A) Mitochondria
(B) Nucleus

(C) Chloroplast
(D) Golgi Apparatus

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Source: This question is taken from the Everyday Science

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What is the substance that causes undesirable change to the environment...?

(A) Climate Change
(B) Pollution

(C) Pollutant
(D) None

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Source: This question is taken from the Everyday Science

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