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geography1 > carbon cycle application > Flashcards

carbon cycle application Flashcards

1
Q

At what rate does volcanic outgassing occur

A

0.15pgC/yr

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2
Q

At what rate does carbon move into oceans via chemical weathering

A

0.8 pgC/yr

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3
Q

At what rate is CO2 released into the atmosphere from the combustion of fossil fuels

A

35pgC/yr

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4
Q

At what rate does down welling AND upwelling from surface oceans to deep oceans occur

A

90pgC/yr

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5
Q

At what rate does dissolved carbon dioxide diffuse from the hydrosphere to the atmosphere

A

90pgC/yr

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6
Q

At what rate does carbon dioxide diffuse from the atmosphere into surface oceans

A

92pgC/yr

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7
Q

At what rate does carbon in the deep ocean sink to the surface sediment

A

0.2pgC/yr

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8
Q

What percentage of all carbon sequestered by photosynthesis is done by phytoplankton

A

50%

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9
Q

What % of carbon is stored as biomass

A

50%

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10
Q

How many times more carbon is in the hydrosphere than the atmosphere

A

50

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11
Q

How much carbon is stored in fossil fuels

A

4000pgC

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12
Q

How much carbon is stored in the lithosphere

A

100million pgC

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13
Q

How much carbon is stored in the atmosphere

A

75pgC

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14
Q

How much carbon is stored in marine biota

A

3pgC

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15
Q

How much carbon is stored in marine biota

A

3pgC

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16
Q

How much carbon is stored in terrestrial biota

A

3500pgC

17
Q

How much carbon is stored in soil

A

2500pgC

18
Q

How much carbon is stored in permafrost

A

1700pgC

19
Q

At what rate does decomposition of carbon in the terrestrial biosphere take place

A

50pgC/yr

20
Q

At what rate is carbon released into the atmosphere by respiration

A

50pgC/yr

21
Q

At what rate is carbon sequestered through photosynthesis

A

123pgC/yr

22
Q

How many times greater is the rate of photosynthesis to respiration

A

1000x

23
Q

How much carbon is stored in the surface ocean

A

1000pgC

24
Q

How much carbon is stored in the deep ocean

A

38000pgC

25
Q

What percentage of the atmosphere is carbon

A

0.04%

26
Q

How much carbon is stored in surface sediment

A

1750pgC

27
Q

How long does it take for carbon to travel between stores in the lithosphere

A

100-200 million years

28
Q

How much carbon would be in the atmosphere without combustion

A

560pgC (compared to 750)

29
Q

How much carbon is stored in teresstrial ecosystems

A

560pgC

geography1 (5 decks)

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