Why was an asteroid with only a 10-15 km (7-8 mile) width able to wipe out the dinosaurs and cause the extinction of 75% of all species on Earth?

Question

That width is less than the distance I drive from my house to the grocery store. Why was that size of an asteroid able to cause such catastrophic damage?

In: 21

Answer 1

“How the World ends” is a good series ,it explains in graphic detail different apocalyptic endings from Gamma Ray Burst,Asteroid impacts ,multi volcanos ..
Great to watch with a cheese sarnie before bed 😂👍