QUESTION: Generate a question with a factual answer?

ANS: What has become a common research tool with model organisms?

QUESTION: Generate a question with a factual answer?

ANS: What was the population in 2009?

QUESTION: Generate a question with a factual answer?

ANS: How many aircraft can supercarriers carry?

QUESTION: Generate a question with a factual answer?

ANS:
From the late 1990s to mid 2000s, was drug use in teens on the rise or decline?