<span>here
is archaeological evidence for human occupation before the land bridge
from Siberia opened up.
There has also been some recent DNA evidence
that suggests there might have been some European settlers before the
Vikings.
Although most of the DNA evidence points to Northern Asia. </span>
<span>In a representative democracy the power of government officials is primarily checked by "C. another branch," since this is what is referred to as "checks and balances". </span>
Answer: After the Civil War ended in 1865, the U.S. rail network grew explosively. This expansion connected distant markets and allowed raw materials to be shipped cheaply and quickly from sources in the West and Midwest to factories in the Northeast.
Explanation:
Towns grew along the canal route, shipping costs between the great lakes and new york were cut to a tenth, and then the second and third choices as well.