Ages 9–11🔬 Science9 verified questions on this shelf
The K-Pg Extinction Event
Describe the Cretaceous–Palaeogene (K-Pg) extinction event approximately 66 million years ago, including the asteroid impact theory and its evidence (iridium layer, Chicxulub crater), and understand that this ended the reign of non-avian d…
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Question 1 of 3
A chart lists three major extinction events: 252 million years ago, 66 million years ago, and 12 thousand years ago. Which entry correctly describes the event that ended the reign of non‑avian dinosaurs?
Question 2 of 3
Which statement correctly explains the asteroid impact hypothesis for the K‑Pg extinction and gives the name of the impact crater?
Question 3 of 3
A science notebook lists three milestones: - 130 million years ago – flowering plants first appear. - ______ – a massive impact ends the era of certain dinosaurs. - 0.2 million years ago – the first humans arrive. Which choice correctly fills the blank and names the group of dinosaurs that disappeared?
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