The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it...? Mcqs

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The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it...?

(A) 10%
(B) 20%

(C) 30%
(D) 50%

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The biological functions which perform gaseous exchange...?

(A) Photosynthesis
(B) Respiration

(C) Both a and b
(D) Growth

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Which has the lowest pH...?

(A) Hepatic Bile
(B) Gastric Juice

(C) Saliva
(D) Pancreatic Juice

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State of matter that hast fixed volume but not fixed shape is called...?

(A) Solid
(B) Gas

(C) Liquid
(D) None

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The major ingredient of leather is__________________...?

(A) Collagen
(B) Polymer

(C) Nucleic acid
(D) None of these

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Which component of diet helps in preventing constipation ...?

(A) Proteins
(B) Fats

(C) Fiber
(D) Carbohydrates

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Study of energy production in living bodies is called_________...?

(A) Biology
(B) Biomechanics

(C) Bioenergetics
(D) Aerodynamics

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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Among the following, which substance is not a compound...?

(A) H2O
(B) Mg

(C) CO2
(D) NaCl

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Trypsin is an enzyme which digests protein produced by_____________...?

(A) Liver
(B) Pancreas

(C) Stomach
(D) Small intestine

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