It was justified mainly by (c) the Rig Veda it wasn't stated that the Vedas advocate the system, just that they advocate what a real man should be capable of.
Answer:
I feel like it's justifiable, if your people are dying and in need of resources which they can't get through trade then you should be allowed to do what you got to do.
Explanation:
Just my opinion.
Population density is the number of people per unit of area. Usually measured by how many people are in a square mile or square kilometer.
I believe the answer you are looking for is the "Neolithic Period".
