Hydrogen peroxide (H2O2)______________...? Mcqs

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Hydrogen peroxide (H2O2)______________...?

(A) helps line up cell proteins
(B) is poisonous to tissues

(C) is often needed as a catalyst
(D) aids in oxidation of glucose

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Waves having crests and troughs with oscillation (movements) of particles perpendicular to the direction of wave propagation are named as...?

(A) Longitudinal Waves
(B) Electromagnetic Waves

(C) Transverse Waves
(D) Mechanical Waves

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Nervous system includes which of these major components...?

(A) Brain
(B) Brain & Back Bone

(C) brain, spinal cord and neurons
(D) None

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The period in which earth has completes a day is...?

(A) Solar day
(B) Lunar day

(C) Sidereal day
(D) Terrestrial day

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The blueness of the sky is mainly due to _____________...?

(A) The scattering of sunlight by air molecules
(B) The presence of water vapor

(C) Absorption of blue light by the air
(D) Emission of blue light by the atmosphere

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Which of the following is the most destructive...?

(A) Typhoon
(B) Tornado

(C) Cyclone
(D) None of these

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In how many days pluto revolves around the sun _____...?

(A) 88 years
(B) 248 years

(C) 12 years
(D) 84 years

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In the absence of sunlight, the entire food chain would become...?

(A) Active and Thrive
(B) Unaffected and Stable

(C) Slow but Survive
(D) Inactive and Collapse

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Fish is one of the best source of ______...?

(A) Protein
(B) Vitamin

(C) Mineral
(D) Carbohydrate

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Max Planck received the noble prize in Physics in 1918 for his discovery of ...?

(A) electron
(B) energy quanta

(C) photon
(D) positron

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