All of these were important outcomes of the lewis and clark expedition except: the expedition defeated many native american tribes. the expedition prove that the northwest passage was a myth. the expedition showed a path through the rocky mountains.

the expedition helped prove that the Northwest was a myth.

answer: the answer is a. double jeopardy

explanation:

answer: researching and understanding issues being considered by lawmakers.

explanation:

lobbying is the act of attempting to influence a politician's behaviour. lobbyists can be members of a constituency, organizations, businesses, non-profit organizations or professional lobbyists.