The three kind of landforms found on Earth are mountains, plains and plateaus. Mountains are natural topographical features that may reach great heights, while plains and plateaus are lower, longer...
leukemia leuÂ·keÂ·miÂ·a (lÅÅ-kÄ'mÄ-É) n. Any of various acute or chronic neoplastic diseases of the bone marrow in which unrestrained proliferation of white blood cells occurs and which is usually accompanied by anemia, impaired blood clotting, and enlargement of the lymph nodes, liver, and spleen.
Leukemia is a cancer that is malignant. This means that it can spread to other parts of the body and destroy surrounding tissue. It is a cancer that affects the cells in the blood. Red and white blood cells and platelets are formed in the bone marrow. The white blood cells become unable to function normally and these abnormal cells reproduce at a fast rate.