Which gas is used to extract energy from food in photosynthesis...? Mcqs

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Which gas is used to extract energy from food in photosynthesis...?

(A) O2 (Oxygen)
(B) CO2 (Carbon Dioxide)

(C) H2O (Water)
(D) N2 (Nitrogen)

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In following reaction the glucose produced by plant is stored in which special forms: 6CO2 + 6H2O → C6H12O6 + 6O2...?

(A) Cellulose
(B) Starch

(C) Protein
(D) Lipid

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Movement of water molecules from the area of higher water potential to the area of lower water potential called...?

(A) Diffusion
(B) Osmosis

(C) Active transport
(D) Water potential

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Which is the renewable source of energy...?

(A) Solar and wind
(B) Coal

(C) Natural gas
(D) Petroleum

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The natural fats and oils are composed of_________...?

(A) Carbon, Hydrogen and Oxygen
(B) Carbon, Hydrogen and Nitrogen

(C) Carbon, Oxygen and Nitrogen
(D) Hydrogen, Oxygen and Nitrogen

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Which of the following floats on water to form sawdust and water mixture...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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The process in which seed grows in to a new plant is called ______...?

(A) Fertilization
(B) Germination

(C) Vernalization
(D) None of these

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The earth is part of a galaxy called...?

(A) Andromeda Galaxy
(B) Triangulum Galaxy

(C) Milky Way Galaxy
(D) Pinwheel Galaxy

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Newton's law of gravitation holds between every two objects on the _____...?

(A) On Earth
(B) On Jupiter

(C) On Moon
(D) On Universe

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The main constituent of hemoglobin is___________...?

(A) Chlorine
(B) Iron

(C) Calcium
(D) None of these

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