Please help me with these questions

1. Which of the following illustrates the concept of scarcity?

a. There is usually more than one use of your "free" time in the evening.

b. More clean air is wanted than is available in large polluted metropolitan areas

such as Los Angeles.

c. There are many competing uses for the annual budget of your city, county, or state

d. All of the answers are correct.

2. The Secretary of Labor states that wage rates in the country have risen by 2 percent this past year. The head of a local labor union states that wage gains have not kept pace with the 3 percent rate of inflation. The Secretary's statement is a (n) ____ economic statement, and the labor head's statement is a (n) ____ economic statement.

a. Normative; normative

b. Normative; positive

c. Positive; normative

d. Positive; positive

e. Proper; improper

3. If the price of a textbook rises and then students purchase fewer textbooks, an economic model

can show a cause-and-effect relationship only if which of the following conditions holds

a. Students' incomes fall.

b. Tuition decreases.

c. The number of students increases.

d. Everything else is constant.

e. The bookstore no longer accepts used book trade-ins.

4. Which of the following is used to illustrate an independent relationship between two

variables?

a. An upward-sloping curve

b. A downward-sloping curve

c. A hill-shaped curve

d. A horizontal or vertical line

5. Economists use models to:

a. Abstract from the complexities of the world.

b. Understand economic behavior.

c. Explain and help predict human behavior.

d. Do all of these.

6. When deciding whether to buy a second car, marginal analysis indicates that the purchaser

should compare the:

a. Benefits expected from two cars with the cost of both.

b. Additional benefits expected from a second car with the cost of the two cars.

c. Dollar cost of the two cars with the potential income that the cars will generate.

d. Additional benefits of the second car with the additional cost of the second car.

7. In the context of the production possibilities curve, opportunity cost is measured in:

a. Dollars paid for the goods.

b. The quantity of other goods given up.

c. The value of the resources used.

d. Changing technology.

e. Units of satisfaction.

8. The law of increasing marginal cost indicates that the opportunity cost of producing a good:

a. Is proportional to the production of the good.

b. Is constant to the production of the good.

c. Increases as more of the good is produced.

d. Decreases as more of the good is produced.

e. Increases as less of the good is produced.

9. Consumers buy less of a good as its price increases because:

a. Production costs have risen.

b. Substitute goods are now relatively cheaper.

c. The income of consumers has effectively risen.

d. The higher price will make the good more valuable to each consumer

10. According to the law of demand, when will higher corn prices reduce the quantity demanded

of corn?

a. Always.

b. When the supply of corn is fixed.

c. When nonprice determinants, like income and the number of buyers, are

unchanged.

d. When there are no shortages or surpluses of corn.