Explanation:
A delta is a process that forms by river deposition into an ocean or marine environment.
- Sediments carried by rivers in their old stage are brought near the mouth of an ocean.
- As the velocity of the river reduces, sediments begins to settle out.
- Small river tributaries breaks out into the ocean.
- Delta forms at an interphase between a small and large body of water.
- The deposited sediments forms distinct shapes as they enter the larger body of water.
