Did the extiction of all dinosaurs happen as a result of an asteroid?

There is scientific evidence that this is the case.

No one is made to believe anything.

You have the choice to believe or not believe.

And so there is always the possibility that there where other causes for the demise of the Dinosaurs.

Asteroid strike 65 million years ago, is not what killed all the dinosaurs, because there is no large pile of dinosaurs on the Geological time line or K-T Boundary. Instead we dinosaurs before and after the impact 65 million years ago. Scientist say that an asteroid impact only deal a finishing blow to a wounded species. Scientist say that disease, changes in climate, food shortage, Deccan Traps (Drowning), failure to adapt to change condition,volcanic activity and sea level regression. It illogical to say that all dinosaurs went extinct, most evolved, mainly into birds. The Tyrannosaurus Rex evolved into the chicken and the Velociraptor evolved into turkeys

Dinosaurs lived on Earth for over 100 million years, there were many species that went extinct long before the asteroid hit 65 million years ago. The asteroid ended the Cretaceous period..

There's some that say its an asteroid or some that say solar radiation wiped out the dinosaurs by a rogue gamma ray burst burning a hole through our ozone and radiating everything on earth like a nuclear missiles causes birth defects/death around the surround ground zero.

I think both have valid reasons but its all for you to decide.

It was the nail in their coffin, so to speak. They were not doing so well for several million years before Chixculub impact, according to paleontological evidence, and the impact destroyed their habitats and decimated their populations. They persisted for a brief while (geologically speaking) afterwards but were doomed.

The crater is north of Yucatan, and the impactor was about 10 km in diameter. Something like that hitting the Earth now would certainly bring an end to human civilization, if not humanity itself.

I don't understand.

Do you mean that if the dinosaurs became extinct BEFORE the Chixulub asteroid you think there would be more fossils? I don't get the reasoning.

A lot of that has to do with being able to find where the fossils are, but the comet is just a theory for now

Yes. A two thousand-year old asteroid.