Answer:
case study
Explanation:
<u>Case study is a research methodology in science especially in social science. It is an in-depth intensive and systematic investigation of a case i.e. a person, a group, a community, or a unit</u>. It help researchers to describe the complexity of a phenomenon in a natural setting.
The statement is true that the state of Arizona can sue the state of California over Colorado river water to the United States Supreme Court and can hear the case for the first time. In fact there was a case that happened in 1982 and was decided on 1983.
The Answer is C, The independent and the dependent variable are the x and y axis and the only one left is the confounding variable.
More than 10,000 separate smells