Between heaven and earth, the growth of all things depends on the same gas. This gas is also carbon dioxide. For terrestrial plants, it is the most important thing.

Terrestrial plants use leaves as windows and bodies as reservoirs, and hold carbon dioxide in them. Whenever the morning light shines, the sun shines, and the pores on the leaves are slightly dilated, and carbon dioxide takes advantage of it. Into the mesophyll cells, in the chloroplast, and meet with water. With the help of light energy and the catalysis of enzymes, a wonderful journey begins and the great cause of photosynthesis is achieved.

Carbon dioxide is the carbon source of terrestrial plants. After photosynthesis, its carbon atoms are reborn and turned into organic substances such as sugars and starches. This organic matter, on the one hand, is the foundation for the growth, development and reproduction of plants themselves, so that the branches can be thick and the flowers and leaves can flourish; on the other hand, it is the energy storage of plants to cope with the cold and summer, wind and rain.

And terrestrial plants regulate the concentration of this gas between heaven and earth through the uptake of carbon dioxide. Lush forests, like huge filters, absorb a lot of carbon dioxide, making the air fresh and the climate smooth. Terrestrial plants and carbon dioxide complement each other and play a key role in the ecological cycle of heaven and earth, maintaining the harmony and balance of nature, which cannot be ignored.