Which increases the amount of carbon dioxide in the atmosphere acting on a carbon souce?

The burning of fossil fuels, deforestation, and certain agricultural practices increase the amount of carbon dioxide in the atmosphere by releasing stored carbon from various sources. When fossil fuels like coal, oil, and natural gas are combusted for energy, they release significant amounts of CO2. Deforestation reduces the number of trees that can absorb CO2, while agricultural practices such as tilling and livestock production can also contribute to higher carbon emissions. Together, these activities enhance the greenhouse effect and contribute to climate change.