Coldest point in atmosphere is...?

PPSC Past Papers

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

Coldest point in atmosphere is...?

(A) Tropopause

(B) Mesopause

(C) Exopause

(D) None of these

✅ Correct Answer: Mesopause

Comments

Source: This question is taken from the Everyday Science

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

In which layer of atmosphere does commercial aircrafts usually fly...?

(A) Stratosphere

(B) Troposphere

(C) Mesosphere

(D) Thermosphere

✅ Correct Answer: Stratosphere

Comments

Source: This question is taken from the Everyday Science

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

Which among the following is the correct sequence of the various layers of the Atmosphere from the Earth’s surface...?

(A) Ionosphere, Mesosphere, Stratosphere, Troposphere

(B) Mesosphere, Stratosphere, Ionosphere, Troposphere

(C) Troposphere, Stratosphere, Mesosphere, Ionosphere

(D) Troposphere, Ionosphere, Stratosphere, Mesosphere

✅ Correct Answer: Troposphere, Stratosphere, Mesosphere, Ionosphere

Comments

Source: This question is taken from the Everyday Science

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

Water vapour turns into clouds in the atmosphere when:...?

(A) It rains

(B) The temperature rise

(C) Dew point is reached

(D) Evaporation takes place

✅ Correct Answer: Dew point is reached

Comments

Source: This question is taken from the Everyday Science

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

Which planet is losing its atmosphere at faster than the earth...?

(A) Mecury

(B) Venus

(C) Mars

(D) Jupiter

✅ Correct Answer: Mars

Comments

Source: This question is taken from the Everyday Science

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

The altitude on stratosphere is ______...?

(A) 40 to 45 km

(B) 50 to 55 km

(C) 60 to 65 km

(D) 70 to 75 km

✅ Correct Answer: 50 to 55 km

Comments

Source: This question is taken from the Everyday Science

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

Most of the weather phenomena take place in which of the following layers of the atmosphere...?

(A) Mesosphere

(B) Ionosphere

(C) Stratosphere

(D) Troposphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

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

Which of the following noble gases is not present in atmosphere...?

(A) Argon

(B) Helium

(C) Radon

(D) Xenon

✅ Correct Answer: Radon

Comments

Source: This question is taken from the Everyday Science

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

Heat transfer horizontally within the atmosphere is called...?

(A) Conduction

(B) Convection

(C) Absorption

(D) Advection

✅ Correct Answer: Advection

Comments

Source: This question is taken from the Everyday Science

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

Most of the ozone in the atmosphere is concentrated in the____________...?

(A) Mesosphere

(B) Troposphere

(C) Stratosphere

(D) Ionosphere

✅ Correct Answer: Stratosphere

Comments

Source: This question is taken from the Everyday Science

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

The Carbon Dioxide in the atmosphere, by volume, is_______...?

(A) 0.039%

(B) 3.9%

(C) 13%

(D) 30%

✅ Correct Answer: 0.039%

Comments

Source: This question is taken from the Everyday Science

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

The principal constituent of the atmosphere of the Earth is...?

(A) Oxygen

(B) Carbon

(C) Hydrogen

(D) Nitrogen

✅ Correct Answer: Nitrogen

Comments

Source: This question is taken from the Everyday Science

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

Which layer of the atmosphere lies close to the earth...?

(A) Stratosphere

(B) Mesosphere

(C) Troposphere

(D) Thermosphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

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

As we go higher into the atmosphere, the air becomes...?

(A) Thinner

(B) Denser

(C) Warmer

(D) Visible

✅ Correct Answer: Thinner

Comments

Source: This question is taken from the Everyday Science

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

The process by which air flows from one location in the atmosphere to another is called __________...?

(A) Convection

(B) Radiation

(C) Conduction

(D) Electromagnetic Induction

✅ Correct Answer: Convection

Comments

Source: This question is taken from the Everyday Science

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

How many layers of Atmosphere...?

(A) 2

(B) 3

(C) 4

(D) 5

✅ Correct Answer: 5

Comments

Source: This question is taken from the Everyday Science

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

The amount of solid waste or concentration of gases other than oxygen increase in atmosphere is called...?

(A) Air pollution

(B) Ozone depletion

(C) Acid rain

(D) Greenhouse effect

✅ Correct Answer: Air pollution

Comments

Source: This question is taken from the Everyday Science

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

Ozone layer prevents ______________ radiation from entering the atmosphere...?

(A) Infra-red

(B) Ultraviolet

(C) X-rays

(D) Gamma rays

✅ Correct Answer: Ultraviolet

Comments

Source: This question is taken from the Everyday Science

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

____________ contains 75–80 % of the mass of the atmosphere....?

(A) Stratosphere

(B) Mesosphere

(C) Thermosphere

(D) Troposphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

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

Imaginary horizontal line on atmosphere which represent equal atmospheric pressure...?

(A) Isobar

(B) Isotope

(C) Isotone

(D) None of these

✅ Correct Answer: Isobar

Comments

Source: This question is taken from the Everyday Science

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

Which one of the following clouds is found at the highest level in the atmospher...?

(A) Stratus

(B) Cumulus

(C) Stratocumulus

(D) Cirrus

✅ Correct Answer: Cirrus

Comments

Source: This question is taken from the Everyday Science

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

__________ is the lowest layer of the atmosphere....?

(A) Stratosphere

(B) Mesosphere

(C) Troposphere

(D) Thermosphere

✅ Correct Answer: Troposphere

Comments

Source: This question is taken from the Everyday Science

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

The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere ___________...?

(A) Barograph

(B) Radiosonde

(C) Aneroid barometer

(D) Altimeter

✅ Correct Answer: Radiosonde

Comments

Source: This question is taken from the Everyday Science

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

what is the height of The atmosphere layer mesosphere...?

(A) 85 km

(B) 50 km

(C) 40 km

(D) 10 km

✅ Correct Answer: 85 km

Comments

Source: This question is taken from the Everyday Science

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

The unit to measure the quantity of Ozone in atmosphere is...?

(A) Dobson

(B) Dalton

(C) Cuolomb

(D) none

✅ Correct Answer: Dobson

Comments

Source: This question is taken from the Everyday Science

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

The unit to measure the quantity of Ozone in atmosphere is ...?

(A) Dobson

(B) Cloning

(C) Dalton

(D) Colomb

✅ Correct Answer: Dobson

Comments

Source: This question is taken from the Everyday Science

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

Which layer of the atmosphere reflects radio waves back to the earth’s surface...?

(A) Troposphere

(B) Stratosphere

(C) Ozone layer

(D) Ionosphere

✅ Correct Answer: Ionosphere

Comments

Source: This question is taken from the Everyday Science

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

Most of the ozone in the atmosphere is concentrated in the _____________...?

(A) Mesosphere

(B) Troposphere

(C) Stratosphere

(D) ionosphere

✅ Correct Answer: Stratosphere

Comments

Source: This question is taken from the Everyday Science

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

The planet retains an atmosphere when...?

(A) Gravity is low and temperature of atmosphere is great

(B) Gravity and temperature both are great

(C) Gravity and temperature both are constant

(D) Gravity is great and temperature of atmosphere is low

✅ Correct Answer: Gravity is great and temperature of atmosphere is low

Comments

Source: This question is taken from the Everyday Science

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

Coldest point in atmosphere is...? Mcqs

PPSC Past Papers