(Solved): 4. Label the wave-erosional features on the diagram below (Figure is, 4). Figure 15.4. Erosional-oc ...

4. Label the wave-erosional features on the diagram below (Figure is, 4). Figure 15.4. Erosional-ocean features. 5. Is the eastern margin of North America a passive continental margin or an active continental margin? List your evidence. The western margin of North America is characterized by a trench and a subduction zone; is this an indication of an active margin or a passive margin? What is your evidence? 6. Compare the water salinity and temperature at the Equator, the middle latitudes and the polar areas. Which area has the highest salinity?