QUESTION: Generate a question with a factual answer?

ANS: What chemical was discovered to have caused the hole in the ozone?

QUESTION: Generate a question with a factual answer?

ANS: What are three of the most common birds in the British Isles?

QUESTION: Generate a question with a factual answer?

ANS: What are the four factors that determine how the body reacts to an antigen?

QUESTION: Generate a question with a factual answer?

ANS:
In which battle did the Dreyse needle gun gain its fame?