Question

The idea that regions are fluid means that __________.

A.
Earth’s surface is floating on a hot magma layer
B.
a region cannot support life without a source of freshwater
C.
a region is difficult to define because it is influenced by people's perceptions and perspectives
D.
formal geographic and political boundaries define a region

Answer 1

a region is difficult to define because it is influenced by people's perceptions and perspectives.

Step-by-step explanation: