True or False: Air shipment is the most effective method for moving cargo in areas with no land or sea access.

Air shipment is indeed the most effective method for moving cargo in areas with no land or sea access. This mode of transport offers the advantage of speed and accessibility, allowing goods to reach remote locations quickly where alternative methods, like land or sea transport, are unavailable. Areas that lack roads, railways, or bodies of water to facilitate shipment would inherently rely on air transport to ensure the timely delivery of goods.

When considering the other options, they may imply variability based on specific conditions or cargo types, but in environments completely cut off from land or sea routes, air freight remains the most viable and effective method. The immediacy and availability of air transport make it the preferred choice in such scenarios.