Was there molecular oxygen in the earths primitive atmospher, Biology

Assignment Help:

Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant?

The presence of the molecular oxygen in the primitive atmosphere was probably at a minimum and extremely rare. The Oxygen became abundant with the emergence of photosynthetic beings, approximately, 1.5 billion years after the appearance of life on the planet.

 


Related Discussions:- Was there molecular oxygen in the earths primitive atmospher

Original density in CFU/ML, a nutrient agar plate labelled 10^(-5)ml had 15...

a nutrient agar plate labelled 10^(-5)ml had 154 colonies after incubated. what is the cell density in the original sample

How sugar is used in bakery application, How Sugar is used in Bakery Applic...

How Sugar is used in Bakery Application? In bakery applications, sugars are used to impart flavor, aroma and color. During the mixing process, excess gluten development can mak

Define conical flask - nutritional biochemistry, Define Conical Flask - Nut...

Define Conical Flask - Nutritional Biochemistry Conical flask is a piece of chemistry laboratory equipment, a container often made of glass, which has a narrow cylindrical mout

Eye colour, what factor''s do i colour depend on?

what factor''s do i colour depend on?

Countercurrent flow, Countercurrent flow is the arrangement by which fish ...

Countercurrent flow is the arrangement by which fish get oxygen from the water which flows by the help of their gills. The water flows across the respiratory surface of the gill i

Explain pure culture techniques, Explain Pure Culture Techniques We lea...

Explain Pure Culture Techniques We learnt the techniques involved in sub-culturing, i.e., the process involved in transfer of culture from one medium to another or transfer of

Obelia, Obelia is considered to be of special interest in zoology as an ani...

Obelia is considered to be of special interest in zoology as an animal showing an intermediate grade of organization?

Epidermis, EPIDERMIS - Ectodermal in origin. Outer part of skin. Mad...

EPIDERMIS - Ectodermal in origin. Outer part of skin. Made up of stratified epithelium. Branches of sensory nerves present. More branches on lips, tips of fingers. B

Haemocyanin - respiratory pigments, Haemocyanin - Respiratory Pigments ...

Haemocyanin - Respiratory Pigments This pigment is found in several arthropods and molluscs. Haemocyanins do not consist of haee groups. The metal they consist of is copper, w

Why diabetics patient should have vegetables every day, Why Diabetics patie...

Why Diabetics patient should have Vegetables every day Diabetics should have vegetables every day. Fresh vegetables are to be preferred because they have less fats and salt. Da

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd