Grain refers to the small, hard seeds harvested from cereal crops like wheat, rice, and corn. These seeds are a staple food source for many people around the world and are used to make products like bread, pasta, and cereals. Grains are rich in carbohydrates, providing energy, and they also contain essential nutrients like fiber, vitamins, and minerals. In addition to being a food source, grain plays a crucial role in agriculture and the economy. Farmers grow various types of grains, which can be sold in local and global markets. The cultivation of grain also supports livestock, as many animals are fed grain-based diets, contributing to the food chain.