For the generation of biogas, the materials commonly used are__________...? Mcqs

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For the generation of biogas, the materials commonly used are__________...?

(A) Animal wastes
(B) Forest residues

(C) Aquatic plants
(D) None of these

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Choose the correct statement regarding lock and key model...?

(A) Enzyme and substrate posses' specific complementary geometric shapes
(B) Active site of enzyme is flexible

(C) Active site continuously changes
(D) All above statements are correct

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Brass gets discoloured in air because of the presence of which of the following gases in air ________ ...?

(A) Carbon dioxide
(B) Oxygen

(C) Nitrogen
(D) Hydrogen sulphide

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How much percentage of water on the earth is freshwater...?

(A) 2.5%
(B) 3.5%

(C) 4.5%
(D) 5.5%

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A wheel with pointed edges like teeth are...?

(A) Pulley
(B) Gear

(C) Axle
(D) Sprocket

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What is the average adult pulse rate...?

(A) 140-150
(B) 115-125

(C) 72-80
(D) 60

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Flowering plants are further divided into how many main types...?

(A) Two
(B) Three

(C) Four
(D) Five

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The energy value of food is measured in_______...?

(A) Joule
(B) Calories

(C) Tesla
(D) Proteins

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Blood glucose level is raised by the following except __________...?

(A) Carbohydrates
(B) Insulin

(C) Cholesterol
(D) Epinephrine

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Alzheimer’s disease is a _________ disorder....?

(A) Genetic
(B) Brain

(C) Eye
(D) Body Weight Loss

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