Where does most of the carbon dioxide released by human activities come from?

Question

Quizplus · Accepted Answer

The majority of carbon dioxide released by human activities comes from burning fossil fuels such as coal, oil, and gas for energy production, transportation, and other industrial purposes. While cellular respiration and decomposition also release carbon dioxide, their contributions to the total human-caused emissions are relatively small. Burning wood for cooking fires also releases carbon dioxide, but this is primarily a concern in developing countries with limited access to modern energy sources.

Where Does Most of the Carbon Dioxide Released by Human