Secondary wall is made up of ______...? Mcqs

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Secondary wall is made up of ______...?

(A) Pectin and cellulose
(B) Cellulose and protein

(C) Cellulose and lignin
(D) Lignin and pectin

Latest MCQs

Periscope is another optical instrument that works on the principle of total ____...?

(A) Refraction
(B) Diffraction

(C) External Reflection
(D) Internal Reflection

Latest MCQs

An astronaut sees the colour of the sky as: _________...?

(A) Blue
(B) White

(C) Red
(D) Black

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Which lens is used for the correction of long-sightedness...?

(A) Convex lens
(B) Concave lens

(C) Compact lens
(D) Conpave lens

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The Sun is a __________...?

(A) Star
(B) Planet

(C) Asteroid
(D) Meteor

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The vitamin which is generally excreted by humans in urine is__________...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin B12
(D) Vitamin C

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Sunlight is a Great Source of ____________...?

(A) vitamin C
(B) vitamin D

(C) vitamin E
(D) vitamin K

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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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In which state of matter, the particles have no regular pattern, have large empty spaces...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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Acid deposition causes ______________________...?

(A) the greenhouse effect to lessen
(B) lakes and forests to die

(C) acid indigestion in humans
(D) all the above are correct

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