Gases are best transported through pipelines. This is because gases are highly compressible, and therefore require specialized transportation that can accommodate changes in volume without causing damage or leakage. Pipelines provide a safe and efficient means of transporting gases, as they are able to handle high pressures and can transport gases over long distances with minimal risk of leakage or loss. Additionally, pipelines are less expensive to operate and maintain compared to other modes of transportation, making them an attractive option for businesses and industries that require large quantities of gases for their operations.