What are three major types of disorders? Give examples of each.
You need to be more specific.
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=three+major+types+of+disorders
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=three+major+types+of+disorders