How does carbon dioxide enter the atmosphere?
a
Carbon dioxide is only released into the atmosphere by human activities.
b
Carbon dioxide is only released into the atmosphere by animals and bacterial decomposers.
c
Carbon dioxide is only released into the atmosphere by plants, animals, and bacterial decomposers.
d
Carbon dioxide is released into the atmosphere by plants, animals, bacterial decomposers, and human activities.
d
Carbon dioxide is released into the atmosphere by plants through the process of respiration and during the decomposition of organic matter by bacterial decomposers. Animals also release carbon dioxide through respiration. Additionally, human activities such as burning fossil fuels and deforestation contribute to the release of carbon dioxide into the atmosphere.