What kind of system does the book diagnostic classification of abnormal behavior use to classify disorders?

The bishnoi conservationist is take care of nature and grow with it, instead of exploiting it explain the statement

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

One of the results of the 2010 golf of mexico oil spill is the threat to various species in the goths ecosystem it disturbed and in some cases forever altered the of the gulf coast