human factors that cause changes to the carbon cycle overtime

Question 1

What are the four human factors that impact the carbon cycle of time?

Answer 1

fossil fuels (hydrocarbons)

deforestation

farming practices

land use change

Question 2

How does burning fossil fuels impact the carbon cycle over time?

Answer 2

burning = releases CO2 into atmosphere

Question 3

How does deforestation impact the carbon cycle over time?

Answer 3

forests cleared for agriculture, logging and urbanisation

clearing = reduced carbon sink
burning forest = releases CO2 into atmosphere

Question 4

How do farming practices impact the carbon cycle of time?

Answer 4

cattle (pasture) = release methane (CH4)

ploughing = release CO2 stored in soil

growing rice in rice paddies = releases methane

Question 5

How have land-use changes impacted the carbon cycle over time?

Answer 5

vegetation removed for buildings = reduces carbon sink

cement production =releases lots of CO2