Question

The bark of the ____ tree was used in South America to cure malaria.

A) Willow.
B) Oak.
C) Maple.
D) Pine.

Answer 1

The bark of the cinchona tree was used in South America to cure malaria.

Step-by-step explanation:

The bark of the cinchona tree was used in South America to cure malaria. Cinchona trees grew only in the Andes, and the bark contains quinine, which is an effective treatment for malaria. Quinine has been used for centuries and is still used today in the treatment of malaria.