QUESTION: Generate a question with a factual answer?

ANS: What property of copper increases the efficiency of electrical motors?

QUESTION: Generate a question with a factual answer?

ANS: Reviewer Alexander Macfarlane believed that the main idea of the work is a comparative study of what?

QUESTION: Generate a question with a factual answer?

ANS: In what area was the Klondike Gold Rush located?

QUESTION: Generate a question with a factual answer?

ANS:
As of 2014, how many hours of video were being uploaded every minute?