Which diagram most accurately shows how late 20th-century migration
patterns within the United States have affected the environment?
caused
O
A
People moved
from the Rust Belt
to the Sun Belt.

Overuse of Colorado
River water became
a problem.
caused
OB.
People moved
from the Sun Belt
to the Rust Belt.

Overfishing became
a problem in the
Atlantic Ocean.
caused
O
C.
People moved
from the Sun Belt
to the Rust Belt.


Overfishing became
a problem in the
Gulf of Mexico.
caused
O
D.
People moved
from the Rust Belt
to the Sun Beit.


Overuse of Columbia
River water became
a problem