Which of the following chemical was likely to be absent at the time of origin

Which of the following chemical was likely to be absent at the time of origin of life?

Options

(a) oxygen
(b) water
(c) hydrogen
(d) ammonia

Correct Answer:

oxygen

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. Accessory excretory organs of man are
  2. Advantage of cleistogamy is:
  3. Stimulation of a muscle fiber by a motor neuron occurs at:
  4. Role of nitrifying bacteria, in niterogen cycle, is to
  5. Cell was discovered by