Extinction

Question 1

What was the trigger for the end Permian extinction

Answer 1

Eruption of the Siberian traps

Question 2

Name 3 changes in the earths system that contributed to the end Permian extinction

Answer 2

Ocean anoxia
Ocean acidification
Global warming

Question 3

What animals rose to ecological prominence after the end Permian extinction

Answer 3

Reptiles

Question 4

What percentage of families (marine and terrestrial) went extinct in the end Permian

Answer 4

61%

Question 5

How did the carbon cycle respond at the end Cretaceous extinction

Answer 5

Collapse of the marine biological carbon pump added co2 to atmosphere

Question 6

What were the 5 main extinctions

Answer 6

End Ordovician 
Late Devonian 
End Permian 
End Triassic 
End Cretaceous

Question 7

Impacts of the end Cretaceous extinction

Answer 7

Decreases in ocean primary productivity
Collapse of biological pump
60% of life went extinct
Rapid and selective extinction