Air contains volume of carbon dioxide approximately...? Mcqs

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Air contains volume of carbon dioxide approximately...?

(A) 3%
(B) 33%

(C) 0.3%
(D) 0.03%

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Which statement is incorrect about chemical reactions...?

(A) States of matter does not change during chemical reactions
(B) Chemical reactions produce new substances

(C) Chemical reactions occur with the absorption or emission of energy
(D) Chemical reactions may be fast, moderate or slow

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Which of the following processes is used in water purification...?

(A) Reverse Osmosis
(B) Osmosis

(C) Cytolysis
(D) Turgor Pressure

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Which of the following regulates the Metabolism Of Sugar...?

(A) Thyroid
(B) Insulin

(C) Glucose
(D) None of These

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Which statement is incorrect about the force...?

(A) Force can change the content of an object
(B) Force can change the shape of an object

(C) Force can change the direction of an object
(D) Force can change the speed of an object

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You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star....?

(A) Wolf-Rayet star
(B) Red supergiant

(C) Stellar storm
(D) Pulsar

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___________are negatively (-) charged particles of an atom...?

(A) Protons
(B) Neutrons

(C) Electrons
(D) None of These

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Weather describe the condition of ______ at any one time....?

(A) The earth
(B) The land surface

(C) The atmosphere
(D) The ionosphere

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Comets are often called what...?

(A) Dusty snowballs
(B) Filthy snowballs

(C) Dirty snowballs
(D) Impure snowballs

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Which one of the following is mismatched...?

(A) Proteases → Carbohydrate
(B) Lipases → Lipids

(C) Trypsin → Protein
(D) All are correctly matched

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