The atmosphere helps us breathe,it provides a shield(radiation shield), a security blanket to keep us warm, and last but not least weathering the storms.
The Barbary pirates were seizing US ships for ransom. One time with two British frigates near bye. That forced a change in Jefferson and he realized he had to have a Navy. He order the Constitution class frigates and some smaller vessels. The start of the blue-water Navy.
Answer and Explanation:
Yet the Incas, and the civilizations before them, coaxed harvests from the Andes' sharp slopes and intermittent waterways. They developed resilient breeds of crops such as potatoes, quinoa and corn. ... The ghost of the Incas' farming achievements still shadows the Andes.