- - - - 60°F _____________________ Earth As warm air rises, it cools, condenses and freezes in the upper atmosphere. What happens as it falls back to Earth? a. It undergoes no chemical or physical change b. It undergoes a physical change from solid to liquid c. It undergoes a physical change from solid to gas d. It undergoes a chemical change from solid to gas e. It undergoes a chemical change from a solid to liquid
<span>Louisiana Purchase.
Bought by the United States in 1803, the Louisiana Purchase was a large territory owned by France that covers approximately 828,000 square miles of land.</span>
