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.
The three major causes of iron deficiency are: 1  Chronic or excessive bleeding. Long-term (chronic) bleeding is the most common cause of iron loss that leads to iron deficiency. 2  Decreased ability to absorb iron. Medicines that reduce stomach acids may cause iron absorption problems. 3  Insufficient iron intake.
Deficiency of this vitamin occurs with excessive fat intake of raw egg whites that interferes with the absorption in the small intestine; dermatitis; hair loss; neuro impairment.