1. which of these is not a major physical feature of south america?
a. patagonian plateau
b. brazilian highlands
c. andes mountains
d. southern tundra

Southern Tundra is not a major physical feature of South America.

Option D

Explanation:

The main physical geographic feature of South America consists of mountains and highlands, coastal plains and river basins. Patagonian Plateau, Andes Mountains, and Brazilian Highlands come under the mountains and highlands category.

Tundra is a region that is found between ice-covered poles and coniferous forests in the northern hemisphere. Since it is covered with ice so coastal Antarctica also considered as the tundra region. Tundra literally gives meaning as treeless land. Also, in the winter season is not suitable for all species, only a few plants and animals can survive here.

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explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

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explanation: