21
Lesson 21 of 84 · Trade and Commerce
Container Ships and Global Shipping
Advertising informs consumers about products and tries to persuade them to buy. Understanding ad techniques helps consumers make smarter spending choices.
Key Facts
1
Needs are different from wants.
2
Supply and demand affect prices.
3
Trade connects people globally.
Check Your Understanding
Question 1
1 of 2What is the difference between needs and wants?