QUESTION: Generate a question with a factual answer?

ANS: How does water vapor inside a light bulb affect lamp darkening?

QUESTION: Generate a question with a factual answer?

ANS: What is the British Navy constructing to replace their three Invincible-class carriers?

QUESTION: Generate a question with a factual answer?

ANS: What do coral and algae produce together?

QUESTION: Generate a question with a factual answer?

ANS:
Where did the reserve team for the main Hanover team used to play?