What resource is found in coastal plains?

Coastal plains are generally fertile due to the deposition of sediments by rivers over millions of years. As a result, agriculture is the main economic activity with important products including rice, corn, soybeans, wheat, cotton, peanuts and fruits.

There are also rich mineral resources in coastal plains. These include oil and natural gas, which are found in the sediments under the ground. Coal and iron ore are also found in some coastal plains, as are sand, gravel and limestone, which are used in the construction industry.

In addition, many coastal plains are home to important fishing grounds. These areas provide a source of food and income for local communities.