Final answer:
The Problem Definition is the step in research that involves identifying the study area and framing research questions, setting the stage for further research processes.
Step-by-step explanation:
The step in conducting research and investigation that deals with identifying the area or phenomenon to study and frames questions to study the phenomenon is Problem Definition. This is the stage where research questions are formulated, which are essential in laying the groundwork for the entire research process. Once a topic and research question are selected, researchers can move on with the other stages like background research, hypothesis formulation, data collection, data analysis, and eventually drawing conclusions.