I would love to help you but you have to let me know what book the questions are asking about.
Is this question from the missionary story?
Answer:
If the soil/ground is good for crops they'll adpat to start growing crops,
if they have a river near by humans' or "settlers" Can use the river/water to not die dehydration and possibly catch fish which is another food soruce, and the animals in their area, say deer's and birds of some sorts, they can hunt and survive by their meats
Explanation:
