Final answer:
The stream contributes to the ocean's salinity through the dissolution of minerals.
Step-by-step explanation:
The statement that correctly describes how the stream affects the salinity of the ocean is D) The stream contributes to the ocean's salinity through the dissolution of minerals. Streams and rivers carry minerals and salts from the land into the ocean. As the water evaporates from the ocean, the dissolved minerals and salts are left behind, increasing the salinity of the ocean water.