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Geography-- Water and Carbon Cycle > The Major Stores of Carbon > Flashcards

Flashcards in The Major Stores of Carbon Deck (11)
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1

how much carbon is stored in the terrestrial biosphere

3,170 GtC

2

main stores in the terrestrial biosphere

living vegetation, plant litter, soil (biggest source), peat and animals

3

how much carbon is stored in the atmosphere

from 720 GtC to 800 GtC

4

carbon is stored in the lithosphere in both .... and .... forms

inorganic and organic

5

Inorganic deposits of carbon in the lithosphere include..

coal, oil and natural gas

6

Some carbon dioxide is released from the interior of the lithosphere by...

volcanoes

7

how are oceans the second largest store of carbon

carbon dioxide is absorbed directly from the air and river water discharges carbon carried in solution.

8

what is the natural purpose of CO2

to regulate the earth's temperature

9

CO2 in the atmosphere is rising at a rate of ...

2 ppm/year

10

main link between the water and carbon cycle

the absorption of carbon in rainwater- facilitates key processes and affects the magnitude of both stores

11

how does the process of carbonation link the water and carbon cycle

when acidic rainwater makes contact with carbonate rocks (eg limestone), it is converted into calcium bicarbonate- is soluble. the dissolved carbon is then carried away by rivers into the ocean (used to build shells)