Of course, if the dose is too high, intoxication results. The trick is to find the right stimulant and the correct dose. So, doctors treat ADHD by prescribing various candidate drugs, noting results and adjusting dosage until a patient shows the desired improvement. When a child is out of control in the classroom, a very destructive cycle of disapproval and rebellion ensues.
Plastic and synthetic materials are the most common types of debris in our oceans and are having horrific impacts on marine wildlife and systems. As an island continent girt by sea marine debris is of particular importance for Australia.
What is the most common salt in ocean water? What force sets ocean waves in motion? What are two most common ions in ocean water?   Ocean water is a complex mixture of substances, the two most common being water, of course, and common salt (sodium chloride).   Waer is a covalent substance and onlyâ¦ splits into ions to a very small degree.