What Happened to the Dinosaurs? One of the biggest unsolved mystenes for scientists is figuring out what happened to the dinosaurs. About 64 million years ago, dinosaurs died out, and scientists today are still trying to determine the cause The one thing that most scientists agree on is that the climate on Earth changed, which made it harder for the dinosaurs to survive Some scientists think that the change in Earth's climate happened quickly and was caused by something that was not from this planet. Their theor is 1. Jan asterolu hit the Earth The impact of the asteroid created a largo dust cloud that blocked the Sun When the Sun could not reach Earth, many plants died making food harder to find for the dinosaurs Another idea is that the climate change was slow and was caused by events happening on Earth. The plates that make up the planet's surface shifted. Some scientists think that as the plates moved, pieces of the land separated, and many volcanoes erupled. Both events would have changed the climate, but the change would have happened over a long period of time. Whichever theory is true, we know that the dinosaurs are no longer here -probably because of the change in Earth's climate during that time Until scientists find more evidence, the disappearance of the dinosaurs will What is one event that may have caused the Earth's climate to change when the dinosaurs lived? A. The pieces of land separated too quickly.stranding the dinosaurs B. Alarge asteroid hit the Earth and created a dust cloud that blocked the sun C. Dinosaurs ato so many plants on the Earth that almost all the food disappeared D. Many plants died aid the dinosaurs had (1ficulty finding food