What are the two main factors determining seawater density? How do these factors vary from the equator to the poles, and from the surface to the sea floor? What influence do these factors have on water movement throughout the oceans? Include with your discussion a graph that displays latitudinal gradients of salinity and temperature.
Answers (1)
You have asked a helluva lot. Here is an explantion of the concepts with a map:
en.wikipedia.org/wiki/Properties_of_water#Density_of_saltwater_and_ice
Wikipedia is the first place to check for any fact based topic. You can't use wikipedia for a reference, but you can use the links at the end of the article.