Cargo ships are large vessels designed to transport goods across oceans and seas. They carry a variety of products, from electronics to food, and are essential for global trade. These ships can be very big, often measuring hundreds of meters in length, and can hold thousands of containers, which are standardized boxes used to store and transport cargo. The operation of cargo ships is crucial for economies around the world. Major ports, like the Port of Shanghai and Port of Los Angeles, serve as key hubs where cargo is loaded and unloaded. Without cargo ships, the movement of goods would be much slower and more expensive.