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.
When they started to build an empire around the Mediterranean but wasn't until about the 6th century I believe. Hope I helped
4. Jawaharlal Nehru is elected prime minister
1. A conflict breaks out at the Sikh Golden Temple
3. India gain independence
2. Indira Gandhi is assassinated
The use of labor-saving devices in industry and agriculture. So b is the correct answer
