Which has been the main cause of desertification? A. Years of uncontrolled flooding
B. Herding & farming
C. Mild climate change
D. Sharp and unexpected changes in weather

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.

answer; have joints that fail from excess by early the accumulated effects of unnoticed infections,all of these things are possible for a person born without the ability to feel pain;

answer; speaker;