Patents are a document that gives an inventor the sole legal right to an invention for a period of time. they encourage competition because people have to be original. They can't copy off others.
Answer:
The answer would be D
Explanation:
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Large-scale migration of African American to the North
<span>d. the bureau had failed to secure indian self-determination.</span>
Answer:
The statement that explains the Federal Government's approach to economic growth in the late 1800s is <em> </em><u><em>improved productivity,</em></u><em> which is the main cause of economic growth. </em>
Explanation:
<em>"the emphasis was on</em><em> economic performance and how it was affected by new technologies, especially those that </em><u><em>improved productivity,</em></u><em> which is the main cause of economic growth. </em>