The earth's atmosphere consists mainly of nitrogen and oxygen with smaller proportions of other gases such as carbon dioxide. The amount of carbon dioxide in the atmosphere is maintained through a balance between processes such as photosynthesis, respiration and combustion. However this balance is being affected by human activities which are polluting the atmosphere.
The proportion of these gases in the atmosphere is as follows: nitrogen is the most abundant at 78%, oxygen is next at 21%, while others include carbon dioxide at 0.037% and argon at 0.9 % .
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Transcription occurs the nucleus of eukaryotic cells
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science:
the water cycle
a volcano exploding
a rock forming
Not science:
https://undsci.berkeley.edu/article/0_0_0/whatisscience_12
Malfunction might lead to organ diseases, and might alter the body metabolism.
