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.
Abandoned and derelict vessels are also marine debris. So let's review. Anything we use every day can become marine debris if we don't dispose of it properly or if it goes into the water by accident. Marine debris can be very small, or can be very big, and anything in between.