How did asteroid impact wipe out dinosaurs?

Rapid climate change is believed to be behind the loss of land and marine creatures over several years, suggesting that rapid global climate change can and did play a major role in driving extinction.
While it is widely accepted that an asteroid impact caused the mass extinction of dinosaurs and other life forms, researchers have been stumped by the process of how. In other words, they had figured out the killer, but not the murder weapon.
A new study has now said that when the asteroid hit the