you are here: > UCA > 17. Life on Earth
 
Index
 
17.1
The Earth, CORPUS and home  
17.2
The Earth's atmosphere, asteroid paths and multi-hits  
17.3
A greater understanding of cycles and seasons  
17.4
The general conditions for hydro-carbon biologics on Earth  
17.5
History of general conditions for life on Earth  
17.6
The nature of the Earths' surface  
17.7
When life first started on Earth  
17.8
Life and death on Earth  
17.9
The preCambrian/Vendian extinctions 500m BCE  
17.10
The Ordovician extinctions 440m BCE  
17.11
The Devonian extinctions 360m BCE  
17.12
The Permian extinctions 248m BCE  
17.13
The Triassic extinctions 209m BCE  
17.14
The Jurassic extinctions 144m BCE  
17.15
The Cretacious extinctions 65m BCE  
17.16
Major extinctions over past 65m years  
17.17
Summary of general patterns of behaviour of life  
17.18
Chances of major life conditions changing in future  
17.19
Summary of key insights  
 
 

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