The correct answer should be Quinine. Africa was beginning to be colonized even before the rest but quinine was definitely revolutionary. That's because Quinine is used as a cure for malaria, and malaria is a huge issue in Africa because of many virus bearing mosquitoes.
I just took this so here’s the answers. The other person who put answers only got five of them right but these are the 100% answers.
1.) B
2.) D
3.) C
4.) B
5.) C
6.) D
7.) D
8.) B
9.) A
10.) B
11.) A
12.) C
13.) D
Answer:
b. Japan became more densely populated
In 1950, Syngman Rhee boasted that he was going to attack North Korea. It was a good enough excuse- the North Koreans invaded South Korea. This started the actual fighting.
Sorry it doesn't quite answer your question.<span />
Answer:
Which was a step that China's rulers took to limit contact with the outside world during the sixteenth and seventeenth centuries? They allowed foreign traders only in select ports.
hopes this helps