Which statement most accurately describes the composition of elements dissolved in sea water?

only a few elements
only sodium and chloride
only a few besides found in trace amounts in addition to sodium and chloride
more than 97 elements are found in trace amounts in addition to sodium, chlorine, and magnesium

In this a resultant disturbance produced by overlapping/addition of two systems is equal to the disturbance produced by each system individually.

Explanation:

Principle of Superposition –  

In this a resultant disturbance produced by overlapping/addition of two systems is equal to the disturbance produced by each system individually.

In wave studies, principle of superposition states that the disturbance produced by resultant overlapping of two waves is equal to the sum of individual disturbances  produced by each waves.

However, In geology principle of superposition means that the layers of rock superimpose on each other in a way that layer at the bottom in the oldest and layer at the top is the youngest.