The K-T Extinction Ended Which Geological Period?
Briefly

Ray Hamel hosts daily quizzes on various topics, allowing players to test their knowledge while comparing scores with average contestants and friends.
Players can engage in the fun daily quizzes and aim to outperform the average scores and their friends, fostering a competitive spirit.
The leaderboard feature for Slate Plus members adds an exciting element to the quiz experience, encouraging participation and interaction among users.
Each weekday's unique challenges are designed to test different knowledge areas, making the quizzes fresh and engaging for all participants.
Read at Slate Magazine
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