We don't know for sure.
The asteroid theory is one example of many theories. Some scientists think one asteroid wasn't enough to kill them all, while others don't think an asteroid killed them at all.
We honestly do not know.
some predict the the dinosaurs died of a big asteroid.
there is evidence that it did but they're is also evidence that it did not
Creation Today - 2011 Did a Giant Asteroid Kill Off the Dinosaurs 1-18 was released on: USA: 2011
Yes most of the people say a asteroid killed all of the dinosaurs of all time
Probably not. Current evidence suggests that the dinosaurs were wiped out by an asteroid impact, possibly in combination with an outburst of volcanic activity.
Science doesn't really work like that; but there is good evidence that a major asteroid impact happened shortly before the mass extinction of the dinosaurs. To complicate the story slightly, the dinosaurs had been declining before the asteroid hit - so it may be the asteroid may have speeded an existing process. There is also good evidence that modern birds are descended from dinosaurs.
The suspect is an Asteroid.
I believe it does. Scientists think that an asteroid wiped out the dinosaurs.
scientists don't know if an asteroid killed the dinosaurs it is just a guess the dinosaurs died 65 million years ago
It was something you did.
an asteroid hit
The most logical theory for the extinction of the dinosaurs is that a large asteroid impacted the earth. Look into it, this topic has many different theories and lots of different interesting information. The answer to this question can be opinionated and debated.