Physical features and environmental conditions primarily influence a region's . a. form of government
b. social class system
c. population distribution
d. religious beliefs

c. population distribution

Explanation:

The physical and environmental conditions of a region greatly influence the population distribution of a country. This is because it is these conditions that determine whether many needs of the population will be met.

When the physical and environmental conditions are able to supply the population's needs, it is common for this region to have a larger population distribution, on the other hand, when the physical and environmental conditions are not able to supply these needs, the population distribution is smaller.