Most of the excessive carbon dioxide that is expected to cause global warming is generated by
A)green plants.
B)burning of fossil fuels.
C)production of cement and clearing of forests.
D)burning of fossil fuels and production of cement and clearing of forests only.

Question

Quizplus · Accepted Answer

Most of the excessive carbon dioxide contributing to global warming comes from the burning of fossil fuels (like coal, oil, and natural gas), the production of cement, and the clearing of forests, as these activities release significant amounts of CO2 into the atmosphere.

Most of the Excessive Carbon Dioxide That Is Expected to Cause