Question

which statement best describes the main idea of \conservation as a national duty\ by president theodore roosevelt?
conservation is not a major priority at this period in history.
the united states should work to protect its natural resources.
becoming a civilized nation tends to be more harmful than helpful.
the native people of this nation use natural resources in a limited way.

Explanation:

The title "Conservation as a National Duty" implies a focus on protecting natural resources. Roosevelt was known for his conservation - related efforts. The main idea is about the importance of safeguarding natural resources for the nation.

Answer:

The United States should work to protect its natural resources.