Answer:
lack of knowledge on geographical features.
lack of manpower necessary to operate the work.
difficult topography Mountains, Hills.
lack of capital required for investment.
lack of modern technology.
Explanation:
Answer:
Negative
Explanation:
Enemies usually refer to bad guys. So if it is a "common enemy" then it is a common bad guy that everyone knows about. It can also mean that you and someone else share an enemy, but that is stilll negative.
D is the answer. the incas did not have slaves