What is the biggest contributor to the Louisiana Wetlands/Delta Region?

Wetlands House Oil and Gas Infrastructure along with many other natural factors are one of the leading contributors.

Explanation:

On the Gulf of Mexico, an area of about 300 kilometers is called Louisiana Wetlands. These are barrier islands.  

The area of this place constantly suffers from digging of holes and pipelines which are being established underground. This promotes soil erosion.  

The nutritive soil layer washes away with dirt or grime left behind.

Many plants get killed because of this phenomenon.

This region is already made up of marshes and swaps which are further elevated by natural forces like hurricanes, storms, floods etc.

The water from Mississippi River has formed an inlet and outlet in this area resulting in a mixture of brackish water.

i'd have to with d.

explanation:

buildings

explanation: