Chapter 25: Flashcards
1
Q
Carbon cycle
A
Atmosphere to vegetation to soils, to benthic sediments,
Atmosphere to surface ocean waters, used by marine biota, flux from marine biota to deep ocean waters
2
Q
- When water cools it drops to deep waters
- Driven by temperature and salinity
A
Global oceanic pattern
3
Q
Mass of atmospheric carbon
A
750Pg (1 Petagram = 10^15g)
4
Q
Mass of carbon in rocks
A
60 000 000 Pg
5
Q
Mass of marine biota carbon
A
3Pg
6
Q
5 Pools
A
Atmosphere Forests and Fauna Soils Deep ocean Rocks and sediment
7
Q
Percentages of anthropogenic C release
A
20% deforestation, 80% burning fossil fuels
8
Q
More CO2 in the air results in shell weakening in organisms (shell are harder to make), decreased calcification of coral reefs
A
Ocean acidification
9
Q
Mechanism of ocean acidification
A
CO2 forms carbonic acid
10
Q
Ecologist who showos acidified lake produce skinny fucked up looking fish and crayfish
A
David Schindler
