When dealing with sensitive issues, it may be more effective to use a self administered questionnaire?

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

Globalization and technology developments have led to what some individuals have described as "flat world." what is the significance of the flat world concept? what is the impact of the flat world on supply chain requirements and strategies?

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.