Answer:
Deltas' greatest importance to human activities, fish and wildlife lay in their characteristic highly fertile soil and dense, diverse vegetation. In order to fully appreciate the role deltas play in our larger ecosystem, it is first important to understand rivers.
Explanation:
Upper-case delta (Δ) often means "change" or "the change in" in mathematics. For example, if the variable "x" stands for the movement of an object, then "Δx" means "the change in movement." A delta is a wetland area created by the build up of sediment where a river empties into a larger body of water. ... Deltas get their name from a Greek letter of the alphabet, and there is evidence that deltas can exist on other planets. The delta arms sometimes remain blocked with ice the whole year round. The most fertile soil is the alluvium of the' Delta, deposited during the overflows of the Mississippi.
