What does the term 'air cargo' refer to?

The term 'air cargo' refers to the movement of goods, which includes mail, freight, and express shipments, transported via air. This broad definition encompasses various types of goods being shipped, not limited to international shipments or specific categories such as perishables. Air cargo is critical in global logistics, facilitating faster delivery compared to ground transportation, as it allows for efficient distribution of items across long distances in a short amount of time.

Options that suggest limitations, such as only international shipments or only perishables, do not accurately reflect the comprehensive nature of air cargo, which can include domestic and non-perishable items as well. Additionally, ground transportation of freight is distinctly separate from air cargo, focusing on different modes of logistics rather than the aerial movement of goods.