The answer would be social.
Answer:
I think the answer is because it is an easier way to bring goods back and forth between states, making trades and transportation less of a struggle.
Explanation:
Knowledge
The Environmental Protective Agency is the main government institution responsible for enforcing water policy. So, the correct answer is A.
Food, unite, and building of villages and cotiesthe presence of rivers, surplus of food and building of villages and cities
Answer:
Shifts in the PPF Curve
The basic idea is that anything that causes economic output to increase or decrease will shift this curve. ... When the economy grows and all other things remain constant, we can produce more, so this will cause a shift in the production possibilities curve outward, or to the right.
Explanation: