Electrostatic precipitator is used to control...? Mcqs

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Electrostatic precipitator is used to control...?

(A) Air pollution
(B) Water pollution

(C) Solid waste
(D) Noise pollution

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Water covers __________ of the Earth’s surface...?

(A) 61%
(B) 67%

(C) 71%
(D) 76%

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An iron nail/steel rod can be magnetize by...?

(A) By passing an electric current around it
(B) By heating it on a high flame

(C) By hammering
(D) By keeping it with an iron rod

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A process by which solvent passes through a porous membrane called...?

(A) Filtration
(B) Distillation

(C) Osmosis
(D) Sedimentation

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Choose the incorrect statement regarding meiosis...?

(A) Maintain chromosome number from generation to generation
(B) Reduces the diploid number of chromosomes to half

(C) Takes place in germ cell to produce gametes
(D) Production of new somatic cells from germ cells

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In the human body there are more than _____ known enzymes....?

(A) 800
(B) 1000

(C) 1200
(D) 1500

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Which of the following bonds are weakest in nature...?

(A) Single bond
(B) Double bond

(C) Triple bond
(D) Hydrogen bond

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Deficiency of vitamin C will cause:__________...?

(A) Beri-Beri
(B) Architis

(C) Scurvy
(D) Night-blindness

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Our Sun is a star and is the closest star to Earth. The next closer star to Earth is known as ____...?

(A) Sirius
(B) Orion

(C) Alpha Centauri
(D) Andromeda

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The flash of light from lightening travels at about ____...?

(A) 2 x 10^5 m/s
(B) 1 x 10^4 m/s

(C) 5 x 10^6 m/s
(D) 3 x 108 m/s

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