Because salinity (in concert with temperature) affects the density of seawater, it can play a role in its vertical stratification. Essentially, lower salinity water (= lower density) floats on top of higher salinity water (= higher density).
Alternative definition, a choice limited to one of two or more possibilities, as of things, propositions, or courses of action, the selection of which precludes any other possibility: You have the alternative of riding or walking. See more.
What is Explanation? Explanation is a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. Explanation text is to say âwhyâ and âhowâ of the forming of the phenomena. It is often found in science, geography and history text books. 2. Generic structure of Explanation.