Which of the following reserves, monuments, or parks are attributed to the efforts of president roosevelt?
a) hoover dam
b) grand canyon
c) niagara falls
d) devil's tower
e) pelican island

The correct answers are B) Grand Canyon and E) Pelican Island.

The following reserves. monuments or parks were attributed to the efforts of President Roosevelt.

President Theodore Roosevelt really was interested in protecting the environment and the conservations of parks and natural areas in the United States. He truly was a conservationist.

On January 11, 1911, Roosevelt declared the Grand Canyon as a national monument. This beatiful place located in Arizona offers one of the most amazing views in a natural location. It is impressive.

On March 14, 1903, signed an Executive Order to make Pelican Island a wildlife sanctuary and a refuge for wildlife.  

doesn't make any since

explanation:

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.