Carbon- EQ1

Question 1

3 Carbon stores?

Answer 1

Terrestrial
Ocean
Atmosphere

Question 2

Ocean carbonate rock?

Answer 2

Limestone

Question 3

2 biological carbonate rocks?

Answer 3

Shale
Oil

Question 4

Long term carbon cycle

Answer 4

Chemical weathering removes carbon from silicate rocks
Carbon dissolves as ocean to form calcium
Carbonate rock subducts
Volcanoes release the underground carbon

Question 5

Geological Carbon Cycle?

Answer 5

Carbon stored in rocks and sediments

Question 6

7 Stages of the geologic carbon cycle?

Answer 6

1) Release of CO2 into atmosphere by volcanism
2) CO2 combing with rain to form carbonic acid
3) Carbonic acid reacting with rocks
4) Carbon carried by rivers
5) Carbon is used to form animal shells
6) Animal shells form limestone after death
7) Subduction of carbonate rocks

Question 7

2 Long term carbon stores

Answer 7

Crustal/ Terrestrial (100,000,000 PgC)
Deep oceanic (38,000 PgC)

Question 8

4 Short-term carbon stores

Answer 8

Soil (1,500 PgC)
Ocean Surface (1,000 PgC)
Atmospheric (560 PgC)
Ecosystems (560 Pgc)

Question 9

5 Ways carbon moves?

Answer 9

Photosynthesis
Fire
Burning of fossil fuels
Weathering
Volcanism

Question 10

2 Reasons why the geologic carbon store is important?

Answer 10

Operates continuously
Primary source of natural atmospheric CO2

Question 11

5 Things that sequester carbon?

Answer 11

Oceans
Forests
Peat
Fossil Fuels
Soils

Question 12

3 Oceanic Carbon pumps?

Answer 12

Biological
Carbonate
Physical

Question 13

Biological Pump?

Answer 13

Phytoplankton sequester CO2 into oceans
Carbon passed up the food chain
Larger fish release the CO2 back into the water & Atmosphere (0.1% reaches ocean floor)

Question 14

Carbonate pump?

Answer 14

Relies on inorganic carbon sedimentation
Shells sink and most dissolve
Part of deep ocean currents
Those that survive form limestone

Question 15

Physical pump?

Answer 15

Flow of water
Cold water absorbs more CO2 whilst warm water releases CO2
Ocean currents pick up and release CO2 as they move between the poles and equator

Question 16

4 Biological stores of carbon?

Answer 16

Oceans
Trees
Wetlands & Peatlands
Soil

Question 17

4 Issues with biological stores of carbon?

Answer 17

Oceans: Acidification
Trees: Deforestation
Wetlands & Peatlands: Drying out/ Drainage
Soil: Tilling, Deforestation

Question 18

3 Factors that affect the capicity of soil to store carbon?

Answer 18

Climate
Soil Type
Management & Use

Question 19

5 Greenhouse gases?

Answer 19

Carbon Dioxide (CO2)
Methane (CH3)
Nitrous Oxide (NO)
Water Vapour (H2O)
Flourinated Gases (CFCs) (Synthetic)