Https://www.loc.gov/exhibits/civil-war-in-america/april-1861-april-1862.html
Answer:
Press the button and "shoot" the black young men, regardless of what they were holding.
Explanation:
1. It is a grassland biome. That mean plenty of food available for cattle.
2. Brasília
3. The gauchos live in The Pampas
4. Argentina, Brazil, and Uruguay
5. I'm not sure, sorry
6. Argentina, Brazil, and you could say Paruguay because Uruguay is really boredered by 3 countries
7. Spanish and Guraní