Which of the following is an example of a physical characteristic of the southern grassland countries? a. Amazon River b. Rio de la Plata c. Himalayan Mountains d. Rio Grande
"Rio de la Plata" is the one characteristic among the following choices given in the question that is an example of a physical characteristic of the southern grassland countries. The correct option among all the options that are given in the question is the second option or option "b". I hope that the answer has helped you.