Final answer:
Air transport is high cost and high speed, water transport is low cost and slow speed, and rail transport is low cost and moderate speed.
Step-by-step explanation:
The mode of transportation that matches the appropriate corresponding description of high cost and high speed is air transport. Air travel is known for its high speed but also comes with a higher cost compared to other modes of transportation. For example, if you need to travel long distances in a short amount of time, such as from one country to another, air transport would be the best option.
The mode of transportation that matches the appropriate corresponding description of low cost and slow speed is water transport. Water transport, such as ships and boats, is generally slower but offers lower costs compared to other modes of transportation. It is ideal for transporting large quantities of goods over long distances, such as international shipping.
Lastly, the mode of transportation that matches the appropriate corresponding description of low cost and moderate speed is rail transport. Rail transport, such as trains, provides a balance between cost and speed. While it may not be as fast as air transport, it offers lower costs and is suitable for transporting goods and passengers over moderate distances.