Question

which statement is correct about the relationship between density and salinity?
as salinity decreases density increases
as salinity increases density increases
as salinity increases density decreases
no answer text provided.

Explanation:

Salinity refers to the amount of salt in water. Density is mass per unit volume. When salinity increases, there is more mass (from the added salt) in the same volume of water. According to the formula \(density=\frac{mass}{volume}\), if mass increases and volume remains relatively constant (in the context of water - salinity changes), density increases.

Answer:

As salinity increases density increases.