Guessanym

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air

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Guessanym
Air

air

Depth
2
Use as Polynym Mark Unseen (✓)
Keyword:   two
Context:   Two main processes govern changes in the atmosphere: the evolution of plants and their increasing role in carbon fixation, and the consumption of oxygen by rapidly diversifying animal faunae and also by plants for photorespiration and their own metabolic needs at night.
Nodes:
    • the evolution of plants and their increasing role in carbon fixation
    • and the consumption of oxygen by rapidly diversifying animal faunae and also by plants for photorespiration and their own metabolic needs at night
Full context:   The amount of oxygen in the atmosphere has fluctuated over the last 600 million years, reaching a peak of about 35% around 280 million years ago during the Carboniferous period, significantly higher than today's 21%. Two main processes govern changes in the atmosphere: the evolution of plants and their increasing role in carbon fixation, and the consumption of oxygen by rapidly diversifying animal faunae and also by plants for photorespiration and their own metabolic needs at night. Breakdown of pyrite and volcanic eruptions release sulfur into the atmosphere, which reacts and hence reduces oxygen in the atmosphere. However, volcanic eruptions also release carbon dioxide, which can fuel oxygenic photosynthesis by terrestrial and aquatic plants. The cause of the variation of the amount of oxygen in the atmosphere is not precisely understood. Periods with more oxygen in the atmosphere were often associated with more rapid development of animals.
Marked as seen, but always open to review

body

Source
Jainism
Area
Metaphysics
Mode
type
Depth
5
User
scotty

element

Source
Ancient Greeks
Area
Philosophy
Mode
type
Depth
4
User
scotty

persuasion

Source
Aristotle
Area
Philosophy
Mode
type
Depth
4
User
scotty

story

Source
Zensufi
Area
Ontology
Mode
type
Depth
5
User
scotty

suffering

Source
Buddha
Area
Philosophy
Mode
type
Depth
11
User
scotty
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