Douglas argued that white people should decide for themselves whether or not to allow it, while Lincoln claimed slavery was immoral and should eventually be abolished.
Answer: D) The use of the domesticated horse in hunting and warfare.
Explanation:
With horses now domesticated, the Indians could travel so much further than before which led to them being able to hunt animals more effectively in many parts of the land.
The Indians also used the horses in warfare as some of them got so adept at using horses that they developed astonishing qualities which they then used to expand their territories against weaker tribes.
Well they'd need to import, which would cause them to lose money, so they'd have less money, and so they'd be affected in that way. Also, they can't make their own goods.
