physical factors that cause change to the carbon cycle over time

Question 1

what are the 2 physical factors that cause change to the carbon cycle ?

Answer 1

wildfires

volcanic activity

Question 2

how do wildfires change the carbon cycle over time ?

Answer 2

carbon from biomass to atmosphere in large quantities

loss of veg = decrease photosynthesis = less CO2 removed from atmosphere

Question 3

how does volcanic activity change the carbon cycle over time ?

Answer 3

CO2 stores in earth = released during volcanic eruption = enters atmosphere

volcanic activity releases less CO2 than human activity