What were some of the things lewis and clark studied on their journey?

The Corps had traveled more than 8,000 miles, produced invaluable maps and geographical information, identified at least 120 animal specimens and 200 botanical samples and initiated peaceful relations with dozens of Native American tribes

Explanation:

not to sure sdi, strategic defense initiative

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.