The luster of diamond is due to_________...?

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💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The luster of diamond is due to_________...?

(A) Reflection

(B) Total internal reflection

(C) Refraction

(D) None of these

✅ Correct Answer: Total internal reflection

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The primary function of the feathers in birds is to _________...?

(A) Provide insulation for preserving body heat

(B) Provide striking surface to the wings for flying

(C) Make the body surface waterproof

(D) impart coloration for species as well as sex recognition

✅ Correct Answer: Provide striking surface to the wings for flying

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The shape of the external ear is due to____________...?

(A) Elastic cartilage

(B) Fibrocartilage

(C) Articular cartilage

(D) none

✅ Correct Answer: Elastic cartilage

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Water soluble Vitamins are _________...?

(A) A & D vitamins

(B) B & C vitamins

(C) A & K vitamins

(D) B & K vitamins

✅ Correct Answer: B & C vitamins

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The blue colour of clear sky is due to_______________...?

(A) Reflection of light

(B) Refraction of light

(C) Diffraction of light

(D) Dispersion of light

✅ Correct Answer: Dispersion of light

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Fuse wire is made of_____________...?

(A) 63% tin and 37% lead

(B) 63% lead and 37% tin

(C) 63% tin and 37% aluminum

(D) 63% lead and 37% aluminum

✅ Correct Answer: 63% tin and 37% lead

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis

(B) Capillary action

(C) Lowering of interfacial tension

(D) Diffusion

✅ Correct Answer: Lowering of interfacial tension

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Red color of tomato is due to___________...?

(A) Anthocyanin

(B) Xanthophyll’s

(C) Lycopene

(D) None of these

✅ Correct Answer: Lycopene

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The distance between the earth and the sun is smallest in the month of _________...?

(A) February

(B) January

(C) December

(D) April

✅ Correct Answer: January

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Bauxite is an ore of_________...?

(A) copper

(B) zinc

(C) aluminium

(D) iron

✅ Correct Answer: aluminium

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Honey contain glucose and fructose along with some other ingredients, it has greater viscosity due to____________...?

(A) hydrogen bonding

(B) irregular shape of the molecules

(C) irregular shape of the molecules and strong inter-molecular forces

(D) greater molecular size

✅ Correct Answer: irregular shape of the molecules and strong inter-molecular forces

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The blueness of the sky is mainly due to _____________...?

(A) The scattering of sunlight by air molecules

(B) The presence of water vapor

(C) Absorption of blue light by the air

(D) Emission of blue light by the atmosphere

✅ Correct Answer: The scattering of sunlight by air molecules

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Main use of salt in diet is to : ___________...?

(A) ease the process of cooking

(B) increase the taste

(C) produce small amount of hydrochloric acid required for digestion

(D) inclease solubility of food particles in water

✅ Correct Answer: produce small amount of hydrochloric acid required for digestion

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The color of blood is red due to __________...?

(A) Haemoglobin

(B) Neutrophils

(C) Esinophils

(D) Hematocrit

✅ Correct Answer: Haemoglobin

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The increasing vapor pressure caused by heating a liquid is due to___________...?

(A) increase inter-molecular interactions

(B) increasing potential energy of molecules

(C) increasing kinetic energy of molecules

(D) decreasing surface tension

✅ Correct Answer: increasing kinetic energy of molecules

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Short sightedness is due to__________...?

(A) Shifting of the iris

(B) Elongation of eyeballs

(C) Weakening of the retina

(D) Weaker muscles

✅ Correct Answer: Elongation of eyeballs

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

All matter is made of ___________...?

(A) Air

(B) Water

(C) Vibrations

(D) Atoms

✅ Correct Answer: Atoms

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Atmospheric temperature increases at the higher altitudes due to________...?

(A) Conduction

(B) Convection

(C) Inversion

(D) Radiation

✅ Correct Answer: Convection

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Stars in the sky appear to twinkle due to _________...?

(A) a series of refractions

(B) a series of reflections

(C) a surface tension phenomenon

(D) multiple diminishing brightness

✅ Correct Answer: a series of refractions

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Geiger-Muller counter is used to detect__________...?

(A) Protons

(B) Neutrons

(C) Photons

(D) none

✅ Correct Answer: Protons

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

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

✅ Correct Answer: Small electric sparks

Comments

Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The luster of diamond is due to_________...? Mcqs

PPSC Past Papers