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.
Marine debris. Marine debris, also known as marine litter, is human-created waste that has deliberately or accidentally been released in a lake, sea, ocean or waterway. Floating oceanic debris tends to accumulate at the center of gyres and on coastlines,[1] frequently washing aground, when it is known as beach litter or tidewrack.