According to the World Wildlife Fund, if deforestation, or the clearing of trees, continues as it has been, 55 percent of the Amazon rain forest could be gone by 2030.Following are examples of Amazon rain forest animals that have already been affected by deforestation.(Mario Tama/Getty Images News/Getty Images).ccording to the World Wildlife Fund, if deforestation, or the clearing of trees, continues as it has been, 55 percent of the Amazon rain forest could be gone by 2030.
Iron deficiency may cause hair loss. Chronic or excessive bleeding. Long-term (chronic) bleeding is the most common cause of iron loss that leads to iron deficiency. Other conditions or events that result in large amounts of blood loss may also lower iron levels to the point where anemia develops.
Blood loss that occurs during childbirth is another cause of low iron levels in women. Internal bleeding (bleeding inside the body) also may lead to iron-deficiency anemia. This type of blood loss isn't always obvious, and it may occur slowly. Some causes of internal bleeding are: A bleeding ulcer, colon polyp, or colon cancer.