Match the heading to the short text.

Each house of Congress of the United States of America has a number of standing \(permanent\) committees and selected \(special and temporary\) committees. Two chambers of Congress of the United States of America form joint committees to consider subjects of its common interest. Moreover, because no act of Congress of The United States of America will be valid unless both of the Houses approve an identical document, conference committees are formed to adjust disputed versions of the legislation.

• THEIR JOINT ACTIVITIES
• NEED A CONCRETE PERIOD FOR PREPARING LEGISLATION
• THEY ARE SERVED FOR CONGRESS OF THE UNITED STATES OF AMERICA
• THEIR DIFFERENT ASPECTS OF THE LEGISLATION
• THE LEGISLATIVE POWER OF THE UNITED STATES OF AMERICA
• ONE OF THE ESSENTIAL FUNCTIONS OF THE PRESIDENT OF THE UNITED STATES OF AMERICA
• THEIR CERTAIN POWERS IN THE CONSTITUTION OF THE UNITED STATES OF AMERICA
• IT HELPS CONGRESS OF THE UNITED STATES OF AMERICA TO CONSIDER NUMEROUS ISSUES
• AN ANNUAL ESSENTIAL PROCEDURE
• THE MAIN DUTIES OF THE PRESIDENT OF THE UNITED STATES OF AMERICA