Give 2 ways carbon dioxide gets into the air?

We breathe our carbon dioxide, so do plants. Animals and plants get rid of carbon dioxide gas through a process called respiration.

Atmospheric carbon dioxide comes from two primary sources-natural and human activities. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas.