Answer:
Answer is A environment and society
Answer:
B. establish communes and promote labor-intensive agriculture
Answer:
on the coast near the seas I think
The right word for the blank space is STABLE.
Before man started cultivating crops, he has to move around constantly in order to look for food for himself and his family. When man started cultivating crops, his wandering around stopped because, food provision is now more stable.
If you are talking location wise, it would be that the place were the port is being built is located near a body of water or water way.
:) hope it helped