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It came from primitive organisms early in earth's history. They were the first organisms to use photosynthesis to make food, by using light to convert Carbon dioxide and water into glucose (food) and oxygen. Since oxygen is a waste product of photosynthesis, it was released into the air. As more and more of these organisms multiplied, large amounts of oxygen were released into the air, forming today's atmosphere.
What else can I help you with?
What does gas do to some scientist think was missing from earths early atmosphere?
oxygen
How do geologists think earths atmosphere formed?
how do geologists think earths atmosphere is formed
Why do scientists think that oxygen accumulated in the earth's atmosphere?
Scientists believe that oxygen accumulated in Earth's atmosphere due to the activities of primitive photosynthetic organisms like cyanobacteria, which released oxygen as a byproduct of photosynthesis. Over time, this oxygen built up in the atmosphere through processes like the Great Oxygenation Event, ultimately leading to the oxygen-rich atmosphere we have today.
Why do scientist think the the amount of oxygen in the earth's atmosphere has increased?
Scientists believe that the amount of oxygen in Earth's atmosphere has increased over time due to the evolution of photosynthetic organisms, such as plants and cyanobacteria. These organisms release oxygen as a byproduct of photosynthesis, leading to an accumulation of oxygen in the atmosphere.
What do scientists think Europe has?
an atmosphere an atmosphere
Why do scientists think the first living cells to spear on earth were pobably anaerobic heterotrophs?
there was no oxygen in Earth's early atmosphere.
What do you think earths atmosphere would be like today if life had not evolved on earth?
Almost no oxygen, lots of CO2, still mostly nitrogen.
What process do scientists think provided earth with an oxygen-rich atmosphere?
Scientists believe that stromatolites were responsible for providing an oxygen-rich atmosphere in precambrian times. Stromatolites are structures formed of sediment. The cyanobacteria that formed these structures were photoautotrophs that used sunlight, carbon dioxide and water to produce their food and a byproduct of oxygen.
What do scientist think was the source of the oxygen in earths atmosphere?
It came from primitive organisms early in earth's history. They were the first organisms to use photosynthesis to make food, by using light to convert Carbon dioxide and water into glucose (food) and oxygen. Since oxygen is a waste product of photosynthesis, it was released into the air. As more and more of these organisms multiplied, large amounts of oxygen were released into the air, forming today's atmosphere.
Where in the earths atmosphere is smog located at?
The Troposhere I think...
What is the most aboundant element in earths atmosphere?
I! think the most aboundant element on earth should be oxygen, because it is the only source of life through which we breath in.
Which two processes do scientists think move the earths lithospheric plates?
bruh
