Organic substances are synthesized from inorganic ones in the process of photosynthesis. What other way of synthesizing

Organic substances are synthesized from inorganic ones in the process of photosynthesis. What other way of synthesizing organic substances exists? What is its significance in nature?

1) chemosynthesis – the process of synthesis of organic substances from inorganic substances due to the energy of oxidation of inorganic substances; chemo-synthesizing organisms are bacteria;
2) chemosynthetic bacteria are involved in the nitrogen cycle, the formation of iron and manganese ores, hydrogen sulfide and sulfur, and the oxidation of ammonia and hydrogen.