Respuesta :
The progress of early humans in the correct order of occurrence is:
1. first; discovered fertile valleys
2. second; settled down and developed agrarian societies
3. third; domesticated animals
4. fourth; developed agriculture
5. fifth; formed communities and civilizations
Hope this helps.
Answer:
1. first; discovered fertile valleys
2. second; settled down and developed agrarian societies
3. third; domesticated animals
4. fourth; developed agriculture
5. fifth; formed communities and civilizations
Explanation: