Between heaven and earth, yin and yang move and evolve, and things multiply. Among them, the source of carbon dioxide is the most important in the world.

The primary source of carbon dioxide is mostly born in various fires. Looking at the world, firewood, coal, and oil and gas are genus, and they are released when they are burned. The business of farming mulberry, and the rot of crops in the fields, are also part of it. And mountains, forests and rivers, if there is a disaster of fire, the grass and trees will burn up, and the carbon dioxide will be scattered in the air.

Furthermore, the breath of all living beings also spits out carbon dioxide. Humans and animals and birds breathe day and night, inhaling oxygen and exhaling this gas. The fish, turtles, shrimp and crabs in the water are the same, using their gills to absorb oxygen to discharge carbon dioxide into the water, and then escape from the air.

And from the earth. Volcanoes erupt, and those that crack the earth come out, and many contain this gas. From geothermal heat, where springs gush, carbon dioxide also rises from time to time.

From this perspective, the origin of carbon dioxide is multi-faceted, related to the life of heaven and earth, the burning of plants and trees, and the changes of mountains and rivers. Only by knowing its source can we observe the changes in the state of the world, and it will be a long-term plan for future generations.