Why are there so many commodities?

There are many commodities because they encompass a wide range of raw materials and primary goods that are essential for production and consumption in various industries. These include agricultural products, metals, energy sources, and more, reflecting the diverse needs of global economies. Additionally, commodities can vary significantly based on geographic, climatic, and technological factors, leading to a multitude of unique products. This diversity allows for specialization and trade, facilitating economic growth and development.