Answer :
The correct answer is 1) water and air. The most commonly used modes for international transportation from the US perspective are water and air transport. Cargo ships are critical for freight in the global economy, while air transport is essential for speedy deliveries despite being less energy efficient over long distances.
The modes most used in international transportation, particularly from the United States perspective, are water and air. Globalization has allowed for goods to be shipped across vast distances through these methods. Cargo ships are a crucial component of the global supply chain when it comes to freight shipment. Air transportation is also significant, especially for goods that require quick delivery, although it is less energy efficient when considering the energy required per kilometer and the longer distances involved.
When we look at domestic and continental transportation, rail and motor (trucking) play important roles. However, in the international context, the physical barriers and the necessity to cover large distances often make water (cargo ships) and air the go-to options for transporting goods efficiently and effectively. The correct answer is 1) water and air.
