Answer:
Meteorites and Volcanic Eruptions/ Lack of resources after these events occurred
Explanation:
The Cretaceous–Tertiary extinction event, now called the Cretaceous–Palaeogene extinction event, was about 66 million years ago. It may be called the K/T extinction event or K/Pg event for short. This is the famous event which killed the dinosaurs at the end of the Cretaceous period.
