The Nueces estuary is found where the Nueces River enters the Gulf of Mexico. This estuary, which is part of the Gulf Coast Prairies and Marshes ecoregion of Texas, provides wetlands habitat for many aquatic and land-dwelling species.

Which of the following illustrates a positive effect that the Nueces River has on the wetlands?
A.
Erosion by the river carries soil from the wetlands to the deep waters of the Gulf.
B.
Weathering by the river breaks up soil so it can be removed from the wetlands.
C.
Deposition by the river replenishes soil in the wetlands with sediment and nutrients.
D.
Regular flooding by the river keeps all of the wetlands' soil permanently underwater.

Deposition by the river replenishes soil in the wetlands with sediment and nutrients illustrates a positive effect that the Nueces River has on the wetlands.

Option: C

Explanation:

A river in its lower course leave the high elevated area and enters into the flat land. In the lower course of the river deposition is the prime work of a river. Estuary, delta are some of the landform that formed in the lower course of a river. Here, Nueces estuary is formed where Nueces river enters into the gulf.

In this gulf a wetland is formed which supports aquatic life and a dwelling place for them and land species also. Here, river deposits all its sediments and replenish the soil of wetland with new sediments and nutrients.