What happen to dinosaur?

Answer 1

Some people think that dinosaurs were wiped out when a meteor hit the earth some people think that volcanos wiped out the dinosaurs

Answer 2

a metor crashed to earth destroyed 70% of dinos but the aftermath killed the rest

Answer 3

If you're asking why their all gone it's because they all died. No one is sure how, but they did die. Some are still alive I believe, but they aren't giant ones.