Do not forget to go back and put in the latitude and longitude values for the cities giving at the beginning of the procedure. The ocean life that will be focused on is phytoplankton. Phytoplankton are simple plants that live in the surface zone of the ocean, acting as the first link in the ocean's food chain. Click here for background information on phytoplankton . Look at the following images of phytoplankton growth in the North Atlantic Ocean.
Color changes from orange to green.
This means a temperature change from approximately 299K to 275K. 2. Consult an atlas if your geography is weak. Coldest areas are Siberia and Greenland. Areas of equal latitude are generally colder during the winter. This means a temperature change from approximately 300K to 290K. 5.