Interdependence-nations relying on each other, global just means world wide. A lot of people depend on other people for imports of food and other stuff, like how West Berlin depended on the Air Lift back in the Cold War.
Answer:
the answer is c. stimulus generalization.
Explanation:
Castles were often built at crossroads to guard important or strategic sites.
The Nile brought the ancient Egyptians and Nubians a constant source of water, allowing them to fish, farm, trade and build communities along its banks.
