The event that marked the exponential growth of human population was?
a. the first world war.
b. the industrial revolution.
c. the black death.
d. the 21st century

c) the invasion of the shang

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: