Composition of Ozone layer...?

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Composition of Ozone layer...?

(A) O1

(B) O2

(C) O3

(D) O4

✅ Correct Answer: O3

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Source: This question is taken from the Everyday Science

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

Which of the following gas mainly responsible for ozone layer depletion...?

(A) Chlorofluorocarbon

(B) CO2

(C) Nitrogen oxide

(D) Sulphur dioxide

✅ Correct Answer: Chlorofluorocarbon

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Source: This question is taken from the Everyday Science

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_________ contains ozone layer....?

(A) Thermosphere

(B) Exosphere

(C) Lithosphere

(D) Stratosphere

✅ Correct Answer: Exosphere

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Source: This question is taken from the Everyday Science

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

The depletion of ozone layer has been caused mainly by _____...?

(A) The release of industrial waste

(B) The deforestation of large area land

(C) The release of chlorofluorocarbons into the atmosphere

(D) None of these

✅ Correct Answer: The release of chlorofluorocarbons into the atmosphere

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Source: This question is taken from the Everyday Science

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

__________ contains the ozone layer....?

(A) Troposphere

(B) Stratosphere

(C) Mesosphere

(D) Ionosphere

✅ Correct Answer: Stratosphere

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Source: This question is taken from the Everyday Science

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

The hard, solid rocks, whose composition or texture has been changed by heat or pressure in the Earth are called____________...?

(A) Sedimentary rocks

(B) Metamorphic rocks

(C) Igneous rocks

(D) All of the above

✅ Correct Answer: Metamorphic rocks

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Source: This question is taken from the Everyday Science

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

Composition of Ozone layer...? Mcqs

PPSC Past Papers