Answer:
The effective ingredient was likely quinine from the cinchona tree.
Explanation:
Quinine is obtained from the bark of the cinchona tree and it is used in the treatment of malaria. Malaria is transmitted to humans by several species of mosquitoes. In South America, Malaria is mostly transmitted in rain forest areas in northern countries. Therefore, in the situation we are studying here, the member who became ill might have been infected. The quinine present in the cinchona bark made him feel better.
Answer:
20 thousands bobs opportunity cost
Answer:it would be B
Explanation:
Because stagnating means not to move