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.
choose the correct answer
d
Carbon dioxide is released into the atmosphere by plants, animals, bacterial decomposers, and human activities.