The list of other possible causes for a drop in a personâs white blood cell count is long. Autoimmune disorders, congenital disorders that affect the way bone marrow works, disorders of the spleen, certain infectious diseases, cancer and parasitic diseases, among others, can all lead to low white blood cell counts.
Best Answer: Mountains can form at all three types of plate boundaries, convergent, divergent, and transform. At divergent boundaries new crust is being formed. The mid-Atlantic ridge is part of the longest mountain range on the planet, it just happens to be mostly covered by ocean.
Convergent Plate Boundaries. Convergent boundaries form where two plates collide. These boundaries often form major mountain chains. These boundaries are identified by their high mountains, volcanic island arc chains, and deep earthquakes.An ocean plate converges with a continental plate.ivergent Plate Boundaries. Divergent boundaries can be mid-ocean ridges or continental rift valleys. At these boundaries, two neighboring plates move away from each other. Continental rift valleys are characterized by normal faulting and basalt-rich volcanoes.