Ozone layer protects the Earth from __________ radiations from the Sun....? Mcqs

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Ozone layer protects the Earth from __________ radiations from the Sun....?

(A) microwaves
(B) infrared

(C) X-rays
(D) ultraviolet

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In a mercury thermometer, what is the range of the linear scale that the mercury rises in the tube...?

(A) 35°C - 42°C
(B) 20°C - 30°C

(C) 50°C - 60°C
(D) 80°C - 90°C

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1 light year = ...?

(A) 9.5×106 km
(B) 9.5×109 km

(C) 9.5×1012 km
(D) 9.5×1018 km

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Plants are divided into how many main groups...?

(A) 3
(B) 4

(C) 2
(D) 1

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The major differentiating organelle of animal and plant cells is ______...?

(A) Cell Membrane
(B) Chloroplast

(C) Nucleus
(D) Cytoplasm

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Which of the following is both endocrine and exocrine gland...?

(A) thyroid
(B) pancreas

(C) parathyroid
(D) all of these

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The magnitude of force between two unit positive charges when the distance between them is 1m would be...?

(A) 0N
(B) 1N

(C) 2N
(D) Columbus Constant

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Convex lenses are also known as ____...?

(A) Converging lenses
(B) Diverging lenses

(C) Deflecting lenses
(D) Reflecting lenses

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Which of the following is called as Blue planet...?

(A) Mercury
(B) Earth

(C) Venus
(D) Neptune

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What process takes place between particles of ink and particles of water when a drop of ink is added to water...?

(A) Osmosis
(B) Diffusion

(C) Sedimentation
(D) Decomposition

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