We cannot say for sure, since there were no people around to take notes. One widely held theory was that the Earth was struck by a comet/ large meteor, resulting in a dramatic weather change- and that most dinosaurs could not adapt to the change.
Animals become extinct from human or natural events e.g deforestation and natural weather
The Banff Longnose Dace became extinct because of the introduction of new tropical fish species in to its' enviroment (a marsh into which the Cave and Basin Hotsprings drain) the leakage from a swimming pool into the water where it lives, and the construction of a beaver dam near it's enviroment. All of these events combined caused the Longnose Dace to become extinct.
The mass extinction event that killed the dinosaurs is believed to have been caused by a large asteroid impact that occurred around 66 million years ago. This impact resulted in a catastrophic chain of events, including widespread wildfires, tsunamis, and a nuclear winter-like effect caused by dust blocking out sunlight, leading to the extinction of the dinosaurs and many other species.
The historical context of change is essentially what the environment does to change due to historical events or trends. For example, how the world changed when dinosaurs became extinct.
The Great Depression was the major event that caused President Roosevelt to become more of an internationalist.
The Great Depression was the major event that caused President Roosevelt to become more of an internationalist.
When the dinosaurs were alive.
dinosaurs
they lost
A mass extinction is an event in which a substantial proportion of Earth's species become extinct in a relatively short period of time, which disrupts the balance of ecosystems. There have been several mass extinctions throughout Earth's history, with the most well-known being the one that wiped out the dinosaurs about 65 million years ago. These events are often caused by major environmental changes or catastrophic events.
The term that describes this theory is "catastrophism." It posits that sudden, short-lived events like floods or volcanic eruptions were responsible for shaping the Earth's surface and causing mass extinctions of species.
Prehistoric means before events where logged and recorded by man; all dinosaurs exisited in the prehistoric eras.