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A current theory that is widely accepted and supported by a great deal of evidence is that organisms were significantly affected by the environmental effects of the Chicxulub meteor impact, leading to the disruption of the food chain and the extinction of nearly 60% of the existing species that existed at that time including the non avian dinosaurs.

Essentially, the atmospheric dust and gas created prevented the Earth's plants from receiving enough sunlight over a period of many years. The colder climate also reduced the habitats of cold-blooded reptiles like the dinosaurs.

Another event that is thought to have contributed to this mass extinction is the occurrence of very large scale volcanic eruptions (known as a large igneous province) in this case known as the Deccan Traps that produced significant volumes of volcanic gasses that contributed to global cooling.

Dinosaurs were a casualty of one, or a combination of, these events.
it is a metor rock that crushes into the earth kill the dinosaurs

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Who really killed the dinosaur?

It is not a "who" but a what that killed off the dinosaurs. It is thought that an asteroid hit the earth causing a prolonged winter which killed off all the plants so they starved to death and died.


Was it lava that killed the dinosaurs?

No, it wasn't lava that killed the dinosaurs. The most widely accepted theory is that they were killed by an asteroid impact that caused a chain reaction of events, including massive wildfires, climate change, and the destruction of food sources. This event led to the extinction of most species on Earth, including the dinosaurs.


Was there ever a meteor shower on earth that messed up life?

No, not a meteor shower. The dinosaurs became extinct after a meteor struck the earth which blocked out the sun and killed much of the vegetataion that the dinosaurs used for food.


What year did the dinosaur's get killed by the asteroid that hit the earth?

The dinosaurs were killed by an asteroid impact around 66 million years ago at the end of the Cretaceous period. This event triggered mass extinctions and led to the decline of dinosaurs and the rise of mammals as the dominant terrestrial animals.


How big was the mega tsunami that killed the dinosaurs and how far inland did it go?

The theory is that it was a large meteorite striking the earth that caused a huge dust cloud to rise and blot out the sun. As plant life succumbed to lack of light, so plant eaters died off first. With no plant eaters to prey on, the carnivore dinosaurs also died eventually from lack of food.

Related Questions

Do scientist think the ice age killed the dinosaurs?

No, the majority of the scientific community has come to the conclusion that the dinosaurs were killed off by a meteor impact 65 million years ago.


Dinosaurs become extinct because they were killed off by humans true or false?

Homosapiens (humans) did not exist until after the dinosaurs were already gone.


What is your conclusion about dinosaurs qualities?

what is your conclusion about what killed the dinosaurs


Did new species kill the dinosaurs?

No one knows what killed the dinosaurs.


Who really killed the dinosaur?

It is not a "who" but a what that killed off the dinosaurs. It is thought that an asteroid hit the earth causing a prolonged winter which killed off all the plants so they starved to death and died.


What is dibromoethene?

it's what killed the dinosaurs.


What really killed the dinosaurs?

some predict the the dinosaurs died of a big asteroid.


What is a tar pot?

that's what killed the dinosaurs


What destroyed the dinosaurs habitat?

The dinosaurs were killed by a very, very large rock called a woodwind.


Was it only the meteorites who killed the dinosaures?

Actually volcanos and meteorites killed the dinosaurs the crater hit Mexico and volcanos all over the world were the dinosaurs lived


How were dinasours killed?

Nobody knows for sure but they think dinosaurs were killed by a giant astroid.


How did the dinosaurs die out?

Sixty-six million years ago, dinosaurs had the ultimate bad day. With a devastating asteroid impact, a reign that had lasted 180 million years was abruptly ended. Prof Paul Barrett, a dinosaur researcher at the Museum, explains what is thought to have happened the day the dinosaurs died.