Afreshwater stream flows into the ocean, as shown in the diagram. which statement correctly describes how the stream affects the salinity of the ocean? salinity increases because the stream adds salt to the ocean. salinity decreases because the stream adds freshwater to the ocean. salinity increases because the stream adds freshwater to the ocean. salinity remains the same because the steam adds freshwater to the ocean.

I can't see any diagram but the correct statement should be:
"Salinity decreases because the stream adds freshwater to the ocean"

The other statements are false.
F Salinity increases because the stream adds salt to the ocean
T Salinity decreases because the stream adds freshwater to the ocean
F Salinity increases because the stream adds freshwater to the ocean
F Salinity remains the same because the steam adds freshwater to the ocean