70
Lesson 70 of 84 · Trade and Commerce
Maritime Trade: Ships and Ports
Saving means setting money aside for the future. Banks keep savings safe and pay interest. Saving helps people prepare for emergencies and big purchases.
Key Facts
1
Trade connects people globally.
2
Every choice has an opportunity cost.
3
Money is a medium of exchange.
Check Your Understanding
Question 1
1 of 2What is an opportunity cost?