45
Lesson 45 of 84 · Trade and Commerce
Trade and Technology
Factories use machines and workers to produce large quantities of goods. The factory system made products cheaper and more widely available during the Industrial Revolution.
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?