Give geographical reasons:

We rely on sea route for international trade.

Foreign trade or international trade is the exchange of goods and services between countries. It is an important component of the economy. Waterways have been the most common means of transport from earlier days. Waterways are the cheapest and easiest way of carrying bulky goods over long distances. One of its greatest benefits is that it does not require any route construction or maintenance. Sea routes and oceanic routes are most beneficial for transporting bulky goods from one country to another. Waterways is a major means of domestic and foreign trade. But, to establish as a major trading center, the port must have a well-connected rail and road transit network.