7. According to the Constitution, what is one responsibility of Congress? reviewing Supreme Court decisions appointing heads of government agencies establishing a lower court system negotiating international peace treaties

## Step 1<br />The question is asking about the responsibilities of Congress according to the U.S. Constitution. The U.S. Constitution outlines the powers and responsibilities of the three branches of government: the legislative, the executive, and the judicial.<br /><br />## Step 2<br />The legislative branch, which includes Congress, is responsible for making laws. This is the primary function of Congress.<br /><br />## Step 3<br />The other options provided, such as reviewing Supreme Court decisions, appointing heads of government agencies, and negotiating international peace treaties, are not the responsibilities of Congress. These tasks are typically associated with the judicial branch (reviewing Supreme Court decisions), the executive branch (appointing heads of government agencies), and the executive branch (negotiating international peace treaties).