QUESTION: Generate a question with a factual answer?

ANS: What decade did the term "graphic novel" become well known by the public?

QUESTION: Generate a question with a factual answer?

ANS: How many citizens were massacred in Isfahan by Timur in 1387?

QUESTION: Generate a question with a factual answer?

ANS: What wavelenght is used to pull data from a CD?

QUESTION: Generate a question with a factual answer?

ANS:
Along with uranyl sulfate and uranyl chloride, what compound is formed by the UO2+ 2 ion?