3. Define scarcity, choice and opportunity cost. Can you link them in your day to day lives? 4. What do you understand by positive economics and normative economics?
5. Explain why economics deals with allocation and efficient utilization of scarce resources
only?
6. In recent years, especially around big cities, there is the problem of air pollution and the
likelihood of poisoning is high. Given this scenario, do you think that air is free resource?
Justify your answer.
7. Describe the four categories of economic resources. Which category of resources you and
your family owned?
8. What is a production possibility curve?
9. Discuss the economic system in Ethiopia over the recent three regimes (EPRDF. Derg and
imperial regime)
10. What are the central problems of an economy? Discuss them in detail.
19​

What decision were made by the first congress during its first year that shape the future of the government

Asociologist wants to study a culture that occurs in some women’s prisons: “state families,” in which individual prisoners take on certain roles within a group of like-minded prisoners. there is previous evidence that younger prisoners will use older inmates who play the roles of grandparents as a resource before they will turn to staff for and advice. the lieutenant in charge of a dorm of long-term prisoners offers to gather volunteers to speak to the researcher and also offers to vouch for the integrity of the researcher. the use of this staff is: a valid use of a statistical technique referred to “snowball sampling” wherein the inclusion of the first subject leads to the recruitment of another one subject. a useful tactic in obtaining a sample of prisoners who both meet the criteria and who will be honest with the researcher. wrong and is prohibited; subject selection needs to be free from intervention by prison authorities or prisoners. acceptable only when the researcher’s irb grants a special waiver.

Which best describes california population when it became a state in 1850? a. because of the gold rush attracting settlers all over the world california population diverse. bcalifornia had banned foreign immigrants at the start of the gold rush. so, the states population was made up of entirely of americans from other parts of the country. c california had a large african population because many southern planters had moved their enslaved africans to start large farms. d the indian removal act had led to the relocation of thousands of eastern native americans to california. as, a result the majority of californias population was native american