The most important accomplishment of Lewis and Clark was claiming the Louisiana territory for the United States.
claiming territory that is now Washington and Oregon for the United States.
recording vital information about the American West during their travels.
traveling overland to the Pacific Ocean instead of by sea.

Were the first to arrive in nowth america. asian french

Explain the value of statistics and other data to positive economics and to normative economics

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?