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.
Then your body has less hemoglobin, and you cannot get enough oxygen. Iron deficiency is the most common cause of anemia. Iron deficiency anemia is caused by low levels of iron in the body. You might have low iron levels because you: 1  Have heavy menstrual bleeding.2  Are not getting enough iron in food.hen your body has less hemoglobin, and you cannot get enough oxygen. Iron deficiency is the most common cause of anemia. Iron deficiency anemia is caused by low levels of iron in the body. You might have low iron levels because you: 1  Have heavy menstrual bleeding.