QUESTION: Generate a question with a factual answer?

ANS: What is the frequency of the light to which the human eye is most sensitive?

QUESTION: Generate a question with a factual answer?

ANS: 2012 studies estimated what percentage of mammals could be extinct in 20 years?

QUESTION: Generate a question with a factual answer?

ANS: What position did Eisenhower informally hold?

QUESTION: Generate a question with a factual answer?

ANS:
Which missionary came to the Santa Cruz River area in 1692?