Which one among the following is an example of decomposition reaction...? Mcqs

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Which one among the following is an example of decomposition reaction...?

(A) The formation of hydrogen and oxygen from water
(B) The formation of water from hydrogen and oxygen

(C) The formation of carbon dioxide from carbon and oxygen
(D) The formation of oxygen from nitrogen and oxygen

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Amino acids are a product of the digestion of: ___________...?

(A) Carbohydrates
(B) Fats

(C) Proteins
(D) Vitamins

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Biopsy is done on tissues taken from__________...?

(A) Human body
(B) Animal body

(C) Living body
(D) Dead body

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__________ is the atmospheric layer wherein the weather occurs....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Thermosphere

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Scientific reasoning based on “if-then” statement called...?

(A) Inductive reasoning
(B) Deductive reasoning

(C) Scientific reasoning
(D) None

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Which one is the brightest star in the night sky...?

(A) Betelgeuse
(B) Sirius

(C) Rigel
(D) Polaris

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The dominant phase of life cycle in these organism is haploid...?

(A) Mosses
(B) Bacteria

(C) Protozoa
(D) None

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The transfer of pollen grains from anther of a flower to the stigma of the same or another flower is called...?

(A) Fertilization
(B) Reproduction

(C) Pollination
(D) Photosynthesis

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The SI unit of electric current is...?

(A) Coloumb
(B) Ampere

(C) Volt
(D) Watt

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We always see the same face of the moon, because...?

(A) It is smaller than the earth
(B) It revolves on its axis in a direction opposite to that of the earth

(C) It takes equal time for revolution around the earth and rotation on its own axis
(D) It rotates at the same speed as the earth around the sun

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