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In the ancient atmosphere, free nitrogen...

In the ancient atmosphere, free nitrogen, exygen and carbon dioxide were not present because

A

of the large amount of hydrogen and high temperature

B

carbon would have combined with hydrogen to form methane

C

any free oxygen would have combined with iron, silicon,

D

All of the above

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The correct Answer is:
D
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ARIHANT NEET-ORIGIN OF LIFE-Chapter Exercises Taking it together (A) (Assorted Questions of the Chapter for Advanced Level Practise)
  1. Pasteur's experiments and similar ones that followed convinced most pe...

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  2. Mark the correct statement.

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

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  4. An evolving coacervate- like system would have needed a controlled and...

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  5. In What respect, the heterotroph hypothesis differs from the early ide...

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  6. Which of the following is a true statement?

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  7. Which of these is a true statement?

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  8. In primordial atmosphere, when the living organism cvolved the respira...

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  9. Which of the following is a factor against the theory of panspermia?

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  10. Which of these gives a possible sequence of organic chemicals prior to...

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  11. Pasteur succeeded in disproving the spontaneous generation theory beca...

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  12. Theory of Special Creation states that

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  13. Which of the following is true about cosmozoan theory?

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  14. Which of the following explanations accounts for the statements.'It ha...

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  15. Biologists are interested in the role of liposomes in the origin of li...

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  16. Life cannot originate from the inorganic material at present becauuse ...

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  17. Which of the following is the strongest evidence that prokaryotes evol...

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  18. How is iological evolution distinct from the chemical evolution?

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  19. Why do scientists think that the RNA and not DNA, was the first gene?

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  20. What is the difference between spontaneous generation and biogenesis?

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