Why do hot air balloons expand due to heat

What does the first amendment’s right to assemble refer to? the right of a group to express unpopular opinions the right of a group to make false claims the right of a group to meet in groups the right of a group to speak in protest

What are the four components of a vehicles control system?

Which of the following powers is held only by the federal government? a. power to make a treaty b. power to set marriage laws c.power to create driving laws d.power to set the legal drinking age