Law of conservation of mass was given by ____...? Mcqs

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Law of conservation of mass was given by ____...?

(A) Antoine Lavoisier
(B) Joseph Black

(C) Mikhail Lomonosov
(D) Jean Stas

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Animal that eat the primary and secondary consumers are called...?

(A) Tertiary Consumer
(B) Primary Consumer

(C) Secondary Consumer
(D) None

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The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...?

(A) 5x10^8m/s
(B) 2.5x10^8m/s

(C) 1.2x10^10m/s
(D) 1.2x10^8m/s

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Sea water (Salt water) freezes at ...?

(A) Same temperature as fresh water.
(B) Slightly higher temperatures than fresh water.

(C) Slightly higher temperature than fresh water.
(D) Sea water does not freeze

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In human, Which body part develop first ...?

(A) Heart
(B) Brain

(C) Lungs
(D) Kidneys

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The strength of wave action depends on all these EXCEPT:...?

(A) Currents in the sea
(B) Wind strength

(C) Depth of coastal water
(D) Height of waves

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How many ounces in a kg...?

(A) 28
(B) 30

(C) 33
(D) 35

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With no air resistance regardless of their masses, the bodies fall with...?

(A) Same acceleration
(B) Different acceleration

(C) Same velocity
(D) None of these

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In blood, the percentage of water is___________...?

(A) 75%
(B) 85%

(C) 90%
(D) 95%

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There are many different types of frozen water on Earth. Collectively, they are known as the: ___________...?

(A) Hydrosphere
(B) Cryosphere

(C) Frigid Zone
(D) Biosphere

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