By which process does the smell of cooking spread to all the rooms in a house...? Mcqs

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By which process does the smell of cooking spread to all the rooms in a house...?

(A) Distillation
(B) Diffusion

(C) Decomposition
(D) Displacement

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Who invented Logarithm Tables...?

(A) John Napier
(B) John Doe

(C) John Harrison
(D) John Douglas

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Proteins are made up of _________...?

(A) Polynucleotide
(B) Polypeptide

(C) Oxyacetylene
(D) None of these

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The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________...?

(A) The hair barging against the charged comb
(B) Small electric sparks

(C) The rubbing of the comb with the hair
(D) None of the above

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Sound travels in air at an average speed of nearly________ ...?

(A) 1257 miles per hour
(B) 755 miles per hour

(C) 330 miles per hour
(D) None of these

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The tubular outgrowth part of roots in plants have the function of _____ in the system....?

(A) Support the plant
(B) Absorb salts and gases

(C) Photosynthesis
(D) Reproduction

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What is the molecular formula for Ammonia...?

(A) NH
(B) NH2

(C) NH3
(D) NH4

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Which of the following female mosquito is the cause of Dengue fever...?

(A) Aedes Aegypteis
(B) Anophilies

(C) Barinohils
(D) N.O.A

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Selective reabsorption in nephron takes place at ______...?

(A) Glomerulus
(B) Malpighian body

(C) Convulated tubules
(D) Loop of Henle's

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EEG records the activity of__________...?

(A) Heart
(B) Lungs

(C) Brain
(D) Muscles

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