Answer:
Answers. The main argument made in the passage about Timur's empire is about developing farmlands and railroad tracks which contributed in the world war period. Knowing how Timur a ruler, made an impact that would disrupt the civilisations for centuries.
The answer is option D "a document made by someone who actually saw an event." A primary source would be like a witness during a event. They can give reliable information on what happened during that event. Main primary sources are: documents, pictures or photographs, and objects that can explain what happened during a event.
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The administrators of regulatory commissions are always appointed by President of the United states of America. The correct option among all the options that are given in the question is option "c". The FERC members are actually appointed by the President with the consent of the United states Senate.
