اوزون لیئر کو سب سے ذیادہ نقصان کون سا مادہ کرتا ہے۔۔۔؟ Mcqs

Latest MCQs

اوزون لیئر کو سب سے ذیادہ نقصان کون سا مادہ کرتا ہے۔۔۔؟

(A) سلفر
(B) زنگ

(C) ہائیڈروجن
(D) کاربن

Latest MCQs

Which gas is used in fire extinguisher...?

(A) Nitrogen
(B) Carbon Dioxide

(C) Oxygen
(D) Nitrogen

Latest MCQs

The Third Most abundant element is:...?

(A) Oxygen
(B) Silicon

(C) Aluminium
(D) None ofthese

Latest MCQs

Which gas is filled in electric bulb...?

(A) Nitrogen
(B) Oxygen

(C) Carbon dioxide
(D) None of these

Latest MCQs

Exoskeleton of a marine snail is composed of...?

(A) Calcium Sulphate
(B) Calcium Carbonate

(C) Sulphur Dioxide
(D) None of these

Latest MCQs

Low silicon, oxygen and High iron, magnesium are the characteristics ____of magma...?

(A) Mafic and Felsic
(B) Felsic and Rhyoltic

(C) Mafic and Basaltic
(D) None of these

Latest MCQs

Which of the following gases is most predominant in the Sun...?

(A) Helium
(B) Hydrogen

(C) Nitrogen
(D) Ozone

Latest MCQs

Examples of magnetic materials are_______...?

(A) Iron, Nickel and Cobalt
(B) Gold, Aluminum and Copper

(C) Earth
(D) All of these

Latest MCQs

Which of the following has the maximum density...?

(A) Water
(B) Ice

(C) Benzene
(D) Chloroform

Latest MCQs

Which gas is known as laughing gas...?

(A) Nitrous oxide N2O
(B) Nitrogen

(C) Methane
(D) None of these

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