the carbon cycle

Question 1

what does photosynhesis do to carbon

Answer 1

removes it from the atmosphere

Question 2

what does respiration do to carbon

Answer 2

lets it out into the atmosphere

Question 3

what is combustion and its relation to carbon

Answer 3

releases carbon into the atmosphere by burning fossil fules, wildfires etc

Question 4

what is decomposition

Answer 4

break doen of dead organisms which releases carbon

Question 5

what does oceans absorbing co2 cause

Answer 5

coral bleeching

Question 6

what is bureal and compaction

Answer 6

sea shell fragments become compacted over time to form limestone and organic matter may form limestone and organic matter which may form fossil fuels

Question 7

what is carbon sequestration

Answer 7

transfer of carbon from the atmosphere can be both natural and artificial

Question 8

what are the main carbon stores

Answer 8

• marine sediments and sedimentary rocks
• oceans
• fossil fuel deposits
  -soil organic matter
• atmosphere
• terrestrial plants

Question 9

whats the main store of carbon

Answer 9

the lithosphere

Question 10

natural processes that change the carbon cycle

Answer 10

wildfires and volcanic activity
wildfires- release carbon
- volcanos- released in eruptions

Question 11

human impacts which change the carbon cycle

Answer 11

burning fossil fuels, deforestation
- farming practices
- ploughing releases co2

Question 12

what is the carbon budget

Answer 12

balence between carbon inputs and outputs to store at any scale

Question 13

what is a carbon source

Answer 13

emits more carbon than it absorbs

Question 14

carbon sink

Answer 14

a store that absorbs more carbon than it emits