1. Too many feuds between families that had high positions in power and government.
2. Too many crimes at once.
Observational methods, case-study methods and survey methods.
Observational Method
With the observational method (sometimes referred to as field observation) animal and human behavior is closely observed. There are two main categories of the observational method — naturalistic observation and laboratory observation.
Case Study Method
Case study research involves an in-depth study of an individual or group of indviduals. Case studies often lead to testable hypotheses and allow us to study rare phenomena. Case studies should not be used to determine cause and effect, and they have limited use for making accurate predictions.
Survey Method
In survey method research, participants answer questions administered through interviews or questionnaires. After participants answer the questions, researchers describe the responses given. In order for the survey to be both reliable and valid it is important that the questions are constructed properly. Questions should be written so they are clear and easy to comprehend.
Answer: Bipolar 2
Explanation: Some individual may often suffer from mental illness or disorder which is characterized by feelings of depression, despondency and often lack of desire even to those things, events, hobbies which are very dear to them. This kind of mental disorder is called Bipolar disorder. However, Mary's feeling and behavior as described above, marks a class of bipolar disorder called BIPOLAR 2 which isn't as severe as the BIPOLAR Mary's case is a mix of depression and very active states, whereby feelings of depression is followed by elevated mood or behavior which is a little above normal, this is showcased in the beautiful painting she creates after her depressive episode.
The most populated place/country would be China with a population of 1.4 billion people