Question

why does oxygen interceptive in making of life

Answer 1

For most of the earth's life forms, oxygen is the single most vital element. we can survive without the carbon and nitrogen  for weeks and can go days without taking in water, but just a few minutes without oxygen can end your life. The interplay between organism, environment and oxygen is complex but well understood.That is oxygen is very important for all living organism to perform all the body functions properly..

Answer 2

at the time of origin of life in ocean there is no free oxygen present in atmosphere leads to birth of a living matter were various molecules and compound attached to make protein but now presence of oxygen in atmosphere leads to continuity of life processes only but not in the making of new or unique organism . after the birth of cyanobacteria all the atmospheric condition started to be changed the carbondioxide or monoxide gases present there are splited into oxygen .