https://pc-tablet.com/research-says-asteroid-strike-triggered-volcanoes-played-vital-role-in-extinction-of-dinosaurs/184895/
Research says Asteroid strike triggered Volcanoes played vital role in extinction of Dinosaurs
May 3, 2015 - Study carried out by researchers at UC Berkeley proposes that 66 million years back, asteroids had struck the surface of the earth.
extinction of dinosaursresearchsaysasteroidstrike