Why is it believed that the dinosaurs got extinct due to a dramatic even, such as an asteroid impact or?

Question

increased volcanic activity, rather than other reasons, like changing climatic conditions not supporting such big animals for example ?

Answer 1

Carbon Dating suggests that a sudden massive amount of carbon was present around the same time dinosaurs went extinct, and a lot of catastrophic events result in a sudden influx in carbon.

Answer 2

There really is no better or other answer to explain why the dinosaurs disappeared so suddenly. Changing climatic conditions would eventually have done them in, but an asteroid hit is the generally accepted answer among people who have spent lifetimes studying this phenomenon.

Answer 3

yeah what he said! lol

Answer 4

It is not true, dinosaurs became extinct from excessive smoking.