2. Which of the following landforms most facilitated the emergence of early civilization in Asia
and Africa?
a) Mountainous areas that were easily defensible and contained an abundance of
resources that could be used as building materials.
b) Elevated plateaus that had a mild climate and furnished ample grazing land for pastoral
activities.
c) Coastal areas that provided abundant supplies of various types of seafood and easy
access to salt for food preservation.
d) River valleys that supported trade and provided fresh water for crop growing and
human consumption