Answer:
1. scarcity-our wants and needs are virtually unlimited, but our resources to satisfy those desires r limited.
2. Supply and demand
3.Incentives
4. Trade offs and Opportunity costs
5.Production possibility costs
6. Factors of Production
7.Marginal Analysis
8. Economic System
10. Circular flowchart 11.International trade
Explanation:
I looked up these. hope it helps.
