Which of the following arguments could be used to support the placement of the hellcopter on a timeline before the Invention of a radio amplifier even though both were invented in 1907?

The helicopter is more useful than radio amplifiers and would likely be used more by the public,

The helicopter is used to help transport people in emergency situations to life-saving medical treatment

The helicopter expanded the role of aviation and led to greater research and development of air travel,

The helicopter was a major breakthrough in transportation that increased the ability to transport goods across the country,

An educatethe yuan dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with india and south east asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over china. a. i & iii c. iv only b. ii only d. all of the above member of the government

Which is one reason many african nations have not prospered after gaining independence from european colonial powers? a. colonial powers sent their weakest economic advisors to the new countries, and their recommendations were flawed. b. independence left them with weak economies, and many countries have been unable to overcome or recover from these burdens. c. the desert region of the interior is inhospitable to foreign investors, and business interests focused on the coastal mediterranean cities. d. the money endowed upon independence is still tied up in the bank of england, which is hesitant to make loans to struggling nations.

“i now wished for the last friend,death, to relieve me.” what is equiano referring to?