Why is judicial review although not mentioned in the constitution an important activity of the supreme court?

Judicial review, while not explicitly mentioned in the Constitution, is an essential function of the Supreme Court as it allows the Court to interpret the Constitution and assess the constitutionality of laws and government actions. This power, established in the landmark case Marbury v. Madison (1803), serves as a critical check on the legislative and executive branches, ensuring that no law or action can violate constitutional principles. By exercising judicial review, the Supreme Court upholds the rule of law and protects individual rights, maintaining the balance of power within the government.