The document defines six terms related to economics:
1. Conservation is keeping resources and the environment from being wasted or destroyed.
2. Profit is the money a business makes after subtracting costs from income.
3. Scarcity refers to a shortage when an economy does not have enough of a resource.
4. Interdependence is the idea that countries must trade with each other to survive.
5. Slavery is the practice of holding people against their will and forcing them to work.
6. Expenses are costs.