The role of the microbiome in the earth's ecosystem and human health is beyond imagination. It will not only greatly help humans to overcome the survival challenges facing us today, but also provide the way for human survival in the future. One of the reasons is that between microorganisms Being able to cooperate with each other makes them more stable and more effective in the ecosystem, and gives the microbiome more powerful functions than a single microorganism. If the following are true, what supports the above point is:. ['The "National Microbiome Project" in the United States is to promote the most advanced microbiological scientific research in all ecosystems, nature and artificial worlds.', 'As a new industry, biological pesticides and biological fertilizers have been booming in recent years, and their international market share has also increased rapidly year by year.', 'By cultivating multiple microorganisms together, the stability and adaptability of its biological system have been greatly improved, and its degradation efficiency of certain harmful compounds has also been improved.', 'The brewing microorganism site provides a variety of microbial resources, from which efficient cellulose-degrading molds, high ethanol-synthesizing yeasts, etc. can be discovered.']