Effective listening
or maybe the term you are looking for is Critical Listening.
Not completely sure would need more context.
The Bubonic plague and the raids by Vikings.
Answer:
Secondary
Explanation:
Secondary research: It involves the collation, summary, and combination of existing research. Secondary research is being compared to primary research as it involves the generation of data, although the secondary research utilizes the primary research data as the root of data for analysis.
Advantage: Secondary research is cost-efficient and time-saving.
The answer of your question
