QUESTION: Generate a question with a factual answer?

ANS: What was hunting in North American in the 19th century used to supplement?

QUESTION: Generate a question with a factual answer?

ANS: What has been a main area of solar chemical research since the 1970s?

QUESTION: Generate a question with a factual answer?

ANS: Where do organisms inherit their genes from?

QUESTION: Generate a question with a factual answer?

ANS:
What was positivism called after it was revived?