Water is not a mode of transportation, but rather a medium through which transportation can take place.

Transportation is the movement of goods and services from one place to another.

Airports are not transportation infrastructure, but rather facilities that support air transportation.

A transportation network is the network of roads, railways, and waterways that connect different places.

Technology is not a factor that affects the development of transportation networks.

Trade routes are the routes along which goods and services are transported.

Environmental degradation is not a benefit of transportation networks.

International trade is the movement of goods and services from one country to another.

Subsidies are not a type of international trade barrier.

Migration is the movement of people from one place to another.

Cultural factors are not a factor that affects migration.

International migration is the movement of people from one country to another.

Skilled migration is not a type of international migration.

Urbanization is the movement of people from rural areas to urban areas.

Cultural factors are not a factor that affects urbanization.