The continent can be broken into four major landform regions: the Coastal Plains, the Eastern Highlands, the Central Lowlands and the Western Plateau. These landform regions have been created by movements in the Earth's crust, river erosion and changes in climate and sea level.
Causes of Low HGB and Low HCT. Figuring out hematocrit levels in the blood is done through Mean Corpuscular Volume or MCV and Red Cell Distribution Width or RDW. These tests determine whether someone is suffering from low Hgb and/or low HCT levels in their blood and can help doctors determine a cause. 1.Anemia is the direct result of a low red blood cell count.iguring out hematocrit levels in the blood is done through Mean Corpuscular Volume or MCV and Red Cell Distribution Width or RDW. These tests determine whether someone is suffering from low Hgb and/or low HCT levels in their blood and can help doctors determine a cause.
The more red blood cells present in the body, the more oxygen and nutrients can be carried to various vital organs for proper functioning. A decrease in hematocrit indicates less delivery of oxygen and nutrients to the bodyâs vital organs. 1  Blood transfusions.2  Hematocrit levels can increase when red blood cells increase. 3  Blood transfusions can replace any blood loss in the body and it can raise the bodyâs red blood cell count, elevating hematocrit levels. Supplementing the body with iron can help increase the bloodâs capacity to carry oxygen and supply the body with oxygen. 2  Address the cause of bleeding. 3  Any bleeding from the body, external or internal, has to be treated or addressed to avoid further decrease in the hematocrit levels.