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.
Answer:
Marbury v. Madison is important because it established the power of judicial review for the U.S. Supreme Court and lower federal courts with respect to the Constitution and eventually for parallel state courts with respect to state constitutions.
Explanation: