Using complete sentences, explain how large-scale agriculture leads to increased atmospheric co2.

Most of the greenhouses released from agriculture do not come in CO2 form, but in other gasses like nitrous oxide and methane, but since the CO2 is the main gas in the greenhouse effect it has to be taken into consideration, The CO2 released from agriculture comes from the usage of fossil fuels while performing certain activities on the land with the mechanization. It comes from the combustion of gasoline and diesel fuels, and it accounts for around 8% from the total amount of greenhouses produced by agriculture.

Explanation:

Large portions of land are cleared of trees to make room for agriculture. Trees consume more CO2 than agricultural crops, so the level of CO2 in the atmosphere increases.

a and b because with the other three, they simplify to something else.