1.11. Carbon Stores (major) Flashcards

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1
Q

Marine sediment and sedimentary rock %

A

69%

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2
Q

Ocean %

A

26%

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3
Q

Fossil fuel deposits %

A

2.7%

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4
Q

Soil organic matter %

A

1%

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5
Q

Atmosphere %

A

0.005%

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6
Q

Soil organic matter

A
  • soil contains rotten organic matter
  • important carbon stores
  • carbon can remain in soil for 100s of years
  • deforestation, land use, and soil erosion can release stored carbon rapidly
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7
Q

Atmosphere

A
  • carbon held in form of co2
  • amount increased due to power stations, vehicles and deforestation -> enhanced greenhouse effect
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8
Q

Terrestrial plants

A
  • vital for life
  • convert sun’s energy to carbohydrates
  • store carbon for years and transfer to soil
  • deforestation- carbon released back into atmosphere
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9
Q

Marine sediments and sedimentary rocks

A
  • largest store of carbon
  • a long term store with rocks taking millions of years to form
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10
Q

Ocean

A
  • very important carbon store
  • co2 absorbed directly from air and river water discharges carbon carried in solution
  • since Industrial Revolution, oceans have absorbed more co2 from air from increased co2 emissions
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11
Q

Fossil fuel deposits

A
  • hydrocarbons= important long term store of carbon
  • since Industrial Revolution, oceans absorbed more co2 from increased co2 emissions
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