How can the development of aptitudes be encouraged? a. positive reinforcement
c. negative reinforcement
b. tangible rewards
d. isolation from negative influences

Suppose that a flower nursery benefits from having a butterfly farm located only a few miles away, because the presence of the insects greatly improves flower pollination. lawyers for the two companies meet to draft a legal document specifying the number of butterflies the farm promises to maintain in exchange for payments to be made by the nursery. which of the following types of private solutions to the externality of pollination has occurred in this case? charities moral codes and social sanctions integration of different types of businesses contracts it’s important to note that sometimes private solutions to externalities do not work. for example, this occurs when communications barriers or social customs are important enough relative to the potential gains involved that (a) the government must step in (b) the private solution is not feasible (c) the market system has a crisis

Carefully study the chart above. which of the following statements best describes literacy rates in north africa? a. literacy rates are decreasing in the region. b. literacy rates are increasing in the region, and the gap between men and women is decreasing. c. literacy rates are increasing in the region, but the gap between men and women is staying the same. d. literacy rates are staying about the same in the region.

Which best describes the purpose of the south carolina exposition and protest, which was written by john c. calhoun? a) to explain why the south was nullifying the tariff of 1828 b) to describe the ways the tariff of 1828 would southerners c) to persuade northern states to rebel against the federal government d) to ask england for if the south decided to secede from the union