The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect

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1. Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?

   A. Carbon dioxide B. Chlorofluorocarbons C. Nitrogen oxides D. Methane...

2. The atmospheric greenhouse effect is produced mainly by the __________________?

   A. Absorption and re-emission of visible light by the atmosphere B. Absorption and re-emission of ultraviolet radiation by the atmosphere C. Absorption and re-emission of infrared radiation by the atmosphere D. Absorption and re-emission of visible light by clouds E. Absorption and re-emission of visible light by the ground Submitted by: Mansoor Ul Haque...

3. Which is the New & Most Important Culprit damaging the ozone Layer?

   A. Carbon Dioxide B. Chlorofluoro Carbons C. Nitrous Oxide  D. Carbon Monoxide Submitted by: Shahbaz Jiskani...

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

   A. 0.039% B. 3.9% C. 13% D. 30%...

5. Air contains volume of carbon dioxide approximately?

   A. 3% B. 33% C. 0.3% D. 0.03% Submitted by: Ashfaque Ali Khoso...

6. The carbon dioxide content in the air that we exhale is about?

   A. 4% B. 9% C. 15% D. 16% Submitted by: Malik Asghar Hussain...

7. Carbon dioxide was discovered by_______?

   A. Niels Bohr B. Amedeo Avogadro C. Joseph Black D. None of Above Submitted by: Ali Mallah...

8. Planets having largest amount of Carbon Dioxide is ____________?

   A. Mercury B. Jupiter C. Mars D. Venus Submitted by: Sinha Amjad...

9. Which element has the second most % in human body?

   A. Oxygen 65% B. Calcium 75% C. Hydrogen 10% D. Carbon 18% Submitted by: Syed Nizakat Ali Shah...

10. The most pure form of carbon among these are?

    A. Anthracite B. Lampblack C. Graphite D. None of these Submitted by: H@yii...