0
What else can I help you with?
Hypothesized to be the early source of free oxygen in Earth's atmosphere?
Cyanobacteria are hypothesized to be the early source of free oxygen in Earth's atmosphere through the process of photosynthesis. They evolved around 2.7 billion years ago and played a key role in the Great Oxidation Event, gradually increasing the levels of oxygen in the atmosphere.
Is there oxygen on the moon?
There is oxygen on the moon, but not as a gas. It is bound up chemically in minerals. Free oxygen, the gas, is not held to the moon as an atmosphere because the moon has not enough gravity to hold a noticeable atmosphere.
Which planet has an atmosphere at 20 percent oxygen?
The closest match to this is Earth with about 21%. No other known planet has more than a trace of free oxygen.
Why is hydrogen so rare in the atmosphere?
Hydrogen is so rare in Earth's atmosphere because of its light weight. It can easily escape into space due to its low molecular mass. Additionally, hydrogen tends to react with other elements, forming compounds like water (H2O), which further reduces its presence as a free gas in the atmosphere.
What does the ionosphere consist of?
The ionosphere is a region of the Earth's upper atmosphere containing ions and free electrons. It is composed of several layers of the atmosphere where solar radiation can ionize atoms and molecules, creating regions of charged particles that affect radio wave propagation and communication.
Can you breathe Jupiter's atmosphere?
No. Jupiter's atmosphere is mostly hydrogen and helium with no free oxygen.
How much of the atmosphere of the is free of nitrogen?
32% the of the atmosphere is Argon, Oxygen and Other stuff
What organisms contributed the most to the shift between an oxygen-free atmosphere to an oxygenated atmosphere?
The 'photosynthtics'
What organisms contribute the most to shift between an oxygen free atmosphere to an oxygenated atmosphere?
cyanobacteria
What organism contributed the most to the shift between an oxygen-free atmosphere to an oxygenated-atmosphere?
The 'photosynthtics'
What organisms contributed the most to the shift between an oxygen free atmosphere to an oxygenated atmosphere?
cyanobacteria
The primative earths atmosphere did not contain?
Free oxygen
Where are free electrons and ions formed?
i thinkn its in an atmosphere
What percent is neon found in its free state?
Neon is found in its free state in trace amounts in the Earth's atmosphere, making up about 0.0018% of the atmosphere.
Where can you find most of free nitrogen?
Most of the free nitrogen on Earth is found in the atmosphere, where it makes up about 78% of the air we breathe. Nitrogen gas (N2) is abundant in the atmosphere, but it is not readily available for use by most living organisms in this form.
How do microorganisms make nitrogen in the atmosphere usuable to plants?
By fixing free nitrogen from the atmosphere through endogenous or exogenous methods.
What is hypothesized to be the early source of free oxygen in Earth's atmosphere?
cyanobacteria
