The absence of free atmospheric oxygen means that the atmosphere does not contain any elemental oxygen (O2). Any oxygen is locked away in compounds such as carbon dioxide.
The normal oxygen content of the atmosphere is 20%; anything appreciably less than that amount is an oxygen deficiency.
Anaerobic.
Anoxic.
anaerobic
a dead body
Because a cloud is water, in gaseous form, it would be considered to be atmosphere. However, when the water vapors in the clouds condense and becomes rain or snow in precipitation, it would be considered to be in the hydrosphere.
Ozone
Ozone (O3).
It is an abiotic factor as it is not alive.
Global Warming. Water Vapour is considered a greenhouse gas.
it is considered as an exosphere
Ozone gas makes one important part of the atmosphere. It protects us from the deadly UV rays.
Not enough to be considered an atmosphere.
Space does not have an atmosphere. It is generally considered a vacuum. Planets and some moons have atmospheres.
Bodies of water are not part of the atmosphere, but water vapor and water and ice in clouds are.
The terrestrial planet that has no atmosphere is Mercury. Its thin atmosphere consists mainly of trace amounts of oxygen, sodium, hydrogen, helium, and potassium, and is not enough to be considered a true atmosphere.
Nitrogen (78%)
The atmosphere and outer space considered as a whole
It is created by nature, not by humans.
It is created by nature, not by humans.
No it is not. It is there in stratosphere.
Ozone (O3) is formed in the stratosphere, where it protects us from ultraviolet radiation. In the lower atmosphere ozone is considered a pollutant.