<span>Substitution Effect, The idea that as prices rise (or incomes decrease) consumers will replace more expensive items with less costly alternatives</span>
Answer:
In ancient times, it was easier to travel by boat than over land. Few roads existed during this time. Also, because of the rivers, this area had arich supply of fish and waterfowl that could be used for food. The land in this area was flat and fertile, rich in nutrients.
Explanation:
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