Ozone layer prevents ______________ radiation from entering the atmosphere...? Mcqs

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Ozone layer prevents ______________ radiation from entering the atmosphere...?

(A) Infra-red
(B) Ultraviolet

(C) X-rays
(D) Gamma rays

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Plant stem that arise from buds on the base of parent plants are ______...?

(A) Bulb
(B) Rhizome

(C) Sucker
(D) Runner

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A thick permeable layer around the plant cell is called...?

(A) Cell Wall
(B) Cytoplasm

(C) Cell Membrane
(D) None

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Which one of the following is oxidizing agent...?

(A) Al
(B) H2S

(C) Cl2
(D) NaH

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Bromine is a___________________...?

(A) black solid
(B) red-brown liquid

(C) colourless gas
(D) highly inflammable gas

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The human eye forms the image of an object at its________...?

(A) Cornea
(B) Pupil

(C) Iris
(D) Retina

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According to World Health Organization (WHO), the industrial limit of sound in the industries must be...?

(A) 80 dB
(B) 75 dB

(C) 85 dB
(D) 100 dB

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All accurately known digits and first doubtful digit in an expression are known as...?

(A) Non-significant figures
(B) Significant figures

(C) Estimated figures
(D) Crossed figures

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The process by which kidney stones are crushed with shock waves is called...?

(A) Laparoscopy
(B) Dementia

(C) Lithotripsy
(D) None of these

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Escape velocity depends on ________...?

(A) Mass of the object trying to escape
(B) Radius of the planet or celestial body

(C) Both mass and radius of the planet or celestial body
(D) The velocity of the rotating planet

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