Exposure to sunlight helps a person improve his health because ________...? Mcqs

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Exposure to sunlight helps a person improve his health because ________...?

(A) Resistance power increases
(B) The infrared light kills bacteria in the body

(C) The ultraviolet rays convert skin oil into Vitamin D
(D) The pigment cells in the skin get stimulated and produce a healthy tan

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The phenomenon which leads to destruction of manmade structure and metal of archaeological importance is ____...?

(A) Hydrogen
(B) Oxygen

(C) Acid Rain
(D) Nitrogen

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A mirror which has a reflecting surface that curves inwards like the front side of the spoon is called ____...?

(A) Convex Mirror
(B) Concave Mirror

(C) Plane Mirror
(D) Parabolic Mirror

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To illuminate the inaccessible places in the tooth, dentists use ______...?

(A) Convex mirror
(B) Concave lens

(C) Convex lens
(D) Concave mirror

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In flowering plants xylem is made up of ____ types of tissues....?

(A) 1
(B) 2

(C) 3
(D) 4

Latest MCQs

Rainbow is seen after rain because of hanging molecules of water which act as __________...?

(A) Lens
(B) Prism

(C) Mirror
(D) Slabs

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In a process of cellular respiration 180 ATP molecules are produced, how many moles of glucose consume during this process...?

(A) 2
(B) 5

(C) 8
(D) 10

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If force of 6N displaces an object 2m in the direction of force, then work done will be __________...?

(A) 0
(B) 12 Joule

(C) 3 Joule
(D) Both b and c

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Chemical formula for Water is _______ ...?

(A) NaAlO2
(B) H2O

(C) Al2O3
(D) CaSiO3

Latest MCQs

When an oscillating object is in simple harmonic motion, its maximum speed occurs when the object is at its _____...?

(A) Highest point
(B) Lowest point

(C) Equilibrium point
(D) Extreme point

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