Question

agriculture techniques like irrigation could help a civilization expand its borders because the could use irrigation to:
A develop more land that was previously too dry for farming.
B protect their cities by building defensive dams and dikes.
C lessen the threat of flooding by spreading the water thin.
D send convoys to conquer areas previously unreachable by land.

Answer 1

@Austin1617

Answer 2

A develop more land that was previously too dry for farming.

Since developing more land for agriculture will help the civilization expand their borders with farming.

Answer 3

@selfconfidence777