The Realization That Earth Was a Sphere

question 100

Multiple Choice

The realization that Earth was a sphere

• A)did not occur in Europe until the first voyages of Columbus.
• B)had to wait until the modern era (1800s).
• C)was first made by Pythagoras,580-500 B.C.
• D)was made by Isaac Newton.
• E)was ascertained after the launch of Sputnik.

---

Definitions:

Producer Surplus

The difference between the amount producers are willing to sell a good for and the actual amount they receive due to market price.

Good X

An unspecified product or commodity in economics, used in theoretical models and discussions.

Producer Surplus

The difference between the actual price producers receive for a product and the minimum price they would accept.

Supply Curve

A graphical representation of the relationship between the price of a good and the quantity supplied by producers.