In the ancient atmosphere, free nitrogen, exygen and carbon dioxide were not present becauseA. of the large amount of hydrogen and high temperatureB. carbon would have combined with hydrogen to form methaneC. any free oxygen would have combined with iron, silicon,D. All of the above

In the ancient atmosphere, free nitrogen, exygen and carbon dioxide we

1.	In the ancient atmosphere, free nitrogen, exygen and carbon dioxide were not present becauseA. of the large amount of hydrogen and high temperatureB. carbon would have combined with hydrogen to form methaneC. any free oxygen would have combined with iron, silicon,D. All of the above
Answer» Correct Answer - D

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In the ancient atmosphere, free nitrogen, exygen and carbon dioxide were not present becauseA. of the large amount of hydrogen and high temperatureB. carbon would have combined with hydrogen to form methaneC. any free oxygen would have combined with iron, silicon,D. All of the above

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