Salinities at the high latitudes (arctic/antarctic) are lower than at the equator.

Depositional coastlines commonly contain rock formations called headlands.

The Sargasso Sea occupies the stagnant eddy in the middle of the North Atlantic Gyre.

An environmental assay is a measure of the concentration of a pollutant.

Invasive species are not considered a form of pollution

Organisms that live on the coast generally tolerate changes in salinity, and thus are known as stenohaline organisms.

An organism with the same body salinity as the open ocean is hypertonic.

Two processes contribute to Primary Productivity: photosynthesis and oblatosynthesis.

There are a relatively small number of marine species because the marine environment is relatively stable.

The United States and Canada are the only countries to have banned the use of disposable garbage grocery bags.