Which diagram shows how human geographic factors contributed to the
settlement of the Great Plains?
caused
The California
Gold Rush came
to an end.
Settlers were forced
to stop and settle in
towns along the trail.
O A.
caused
Engineering
projects
dammed rivers.
Previously inhospitable
lands became arable and
attractive to farmers.
O
B.
caused
American Indians
were removed from
traditional lands.
Oc.
Previously hostile
lands became
available to pioneers.
Drought forced
farmers to cities.
caused
OD
Previously inhabited
lands became
widely available.