Question

The most significant and longest-lasting impact of the "Gold Rush" of the mid-1800s was

A) environmental damage to streams and mountains.
B) the extinction of the buffalo in North America.
C) the expansion of Americans across the continent.
D) the abolition of slavery in the western territories.

Answer 1

C.the expansion of AMERICANS across the continent

Answer 2

C. the expansion of Americas across the continent :)