--%>
Assignment Help - homework help

Abundancy of oxygen in the atmosphere

Whether there was molecular oxygen within the earth's primitive atmosphere? How that molecule has become abundant?

E

Expert

Verified

The existent of the molecular oxygen within the primitive atmosphere was probably at the minimum and extremely rare. Oxygen form abundant gas due to the emergence of photosynthetic beings, around, 1.5 billion years after appearance of the life over planet.

   Related Questions in Biology

  • Q : Analyze the politicians effect on

    The rash of hurricanes which pelted the Gulf Coast in the year of 2005 resulted in a large decline in gasoline production as several offshore rigs were shut down and several refineries were taken off line whereas waiting out the hurricane. The decrease in supp

    		•
  • Q : Of what units are nucleic acids

    Of what units are nucleic acids comprised? Write down the chemical entities which compose that unit?

    		•
  • Q : Working of contraceptive pills Explain

    Explain the working of the contraceptive pills?

    		•
  • Q : Consumer surplus-for both company

    Consumers are frequently bewildered by the distinct array of choices, plans and prices which are offered by companies offering cell phone service. Describe in terms of consumer surplus why it makes sense from both the company's perspective and that of the

    		•
  • Q : Comparison of Structural Databases

    Explain the Comparison of Structural Databases Scop, Cath and Dali. And also describe their classification?

    		•
  • Q : Name the most ammoniotelic beings

    Name the most ammoniotelic beings aquatic animals?

    		•
  • Q : Adult or lasting form for each of three

    Which is the respective ploidy of the individual that represents the adult or the lasting form for each of three types of life cycles?

    		•
  • Q : Explain ABC analysis ABC analysis : It

    ABC analysis: It is an inventory management technique wherein the items are classified and clubbed according to their value. The items including the top 5-10% of the total value of inventory are known as "Class A", next 10-15% is classified as "Class

    		•
  • Q : State Competitive Analysis Competitive

    Competitive Analysis: This is the practice of analyzing the competitive environment wherein your business operates or can say wishes to operate, as well as weaknesses and strengths of the businesses with that you compete, weaknesses and strengths of y

    		•
  • Q : Destination of branchial clefts in the

    What is the destination of branchial clefts in the humans?

    		•