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Oxygen was not found in the atmosphere of primitive Earth.
It is so reactive that it became locked up in compounds at the time of Earths formation.
These compounds were varied, but the bulk of them were mineral oxides, silicates, carbon dioxide and water. Free oxygen entered the atmosphere only after the development of blue-green algae, which produced oxygen from carbon dioxide.
What else can I help you with?
How do geologists think earths atmosphere formed?
how do geologists think earths atmosphere is formed
The primitave earths atmosphere did not contain?
Oxygen gas
There are five layers of earths atmosphere true or not?
:9 true
How do rainbows form in earths atmosphere?
rainbow form by the sunlight after the rain
Is krypton a gas in earths atmosphere?
Yes. Superman doesn't like it.
What gas was present in earths primitive atmosphere?
The primary gases in Earth's primitive atmosphere were likely hydrogen, helium, methane, ammonia, and water vapor. Over time, these gases were likely transformed by geological and biological processes into the current composition of the atmosphere.
What is the least plentiful substance in the earths atmosphere?
Nitrogen.
What element in earths atmosphere was not present in the far past but is present now?
The element "Oxygen".
Which gas exist in the highest concentration in the earths present atmosphere?
Nitrogen is about 79% of the Earth's atmosphere.
What gas is the largest component of earths present atmosphere?
Nitrogen is the largest component of Earth's present atmosphere, making up about 78% of the total gases in the atmosphere.
What three gasses present in Earths atmosphere absorb solar radiation?
Carbon dioxideMethaneNitrous Oxide
Which layer of the earths atmosphere protects the earth from the ultraviolet radiations of the sun?
Ozone layer protects us. It is present in the stratospheric region of atmosphere.
What layer of earths atmosphere would be considered good ozone?
There is good ozone and then there is bad ozone. Good ozone is present in the earth's atmosphere.
What is the approximate percent of oxygen by volume present earths lower atmosphere?
Oxygen makes up about 21% of Earth's lower atmosphere by volume.
What molecule was not present in early Earths reducing atmosphere?
Oxygen (O2) was not present in early Earth's reducing atmosphere. It only became abundant in the atmosphere due to the photosynthetic activity of cyanobacteria and other early organisms.
What is the approximate percent of oxygen by volume present in earths lower atmosphere?
The approximate percent of oxygen in Earth's lower atmosphere is around 20.95% by volume.
WHAT IS THEAPPROXIMANT PERCENT OF OXYGEN BY VOLUME PRESENT IN EARTHS LOWER ATMOSPHERE?
The approximate percentage of oxygen in Earth's lower atmosphere is around 21% by volume.
