Which person was an important leader of the conservation movement? Jacob Riis
Jane Addams
Frances Willard
Teddy Roosevelt

A

Explanation:

teddy roosevelt

Explanation:

Theodore Roosevelt was the first president of the 1900s, a time of great expansion and development. His devotion to conserving our natural and cultural history helped establish a precedent at an important time in our nation's history.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.