What is the major source of carbon dioxide

Question

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What is the major source of carbon dioxide?

Group of answer choices

A.aerosol sprays and refrigerants

B.by-product of cattle and sheep digestion

C.burning associated with rainforest clearing

D.burning fossil fuels

E.widespread use of chemical fertilizers in agriculture

Answer 1

D. The burning of fossil fuels.

The main human activity that emits CO2 is the combustion of fossil fuels (coal, natural gas, and oil) for energy and transportation.