answersLogoWhite

0


Best Answer

The main evidence is a layer of iridium that is found worldwide. Iridium is an element that is rare on Earth's surface, but is common in asteroids. The iridium layer dates to 65.5 million years ago, and coincides with the extinction of the dinosaurs. Also, geologists have discovered the Chixculub crater, a crater that is buried by sediment but is so large it could only have been created by an asteroid 6 miles across.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do Scientists think a Asteroid hit the world 65 million years killed the dinos?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What was the object that struck the earth over 4 billion years ago?

An asteroid. This was not what killed the dinosaurs, though. The dinos were destroyed by erupting volcanoes which may or may not have been influenced by the asteroid.


What are some differences between an asteroid and an meteor?

There isn't really any differences they are the same thing except an asteroid is MUCH MUCH bigger than a meteor, an asteroid is what killed off the dinos along time ago not a meteor. So say Jupiter and Pluto were a meteor, and a asteroid, Pluto wouold be the meteor and Jupiter would be the asteroid


Is the extincion of dinos are real?

The scientists believe that dinosaurs were extinct.


When did dinos die?

about 65 million years ago.


What killed the dinos?

well if you look in um i think Mexico there a large crater two none areas on earth are the strikepoints were the asteroids hit the earth but they were a few moments apart possibly years and the first one was the one that threw debris into the atmophere blocked solarphoto{sunlight} and that was waht killed the plants which most dinosaurs need to survive but then a few years later, another asteroid struck an note around this time the dinosaurs were alreaddy on the brink of dieing out and when it that asteroid struck it killed them


How dinosaurs vanished?

some say an asteroid hit the earth and wiped out the dinosaurs. others say the climate got colder and the dinos couldn't adapt.


Ants were here when dinos where here?

up to 168 million years ago


Was 250 million years ago before or after the age of the dinosaurs?

the first dinos appeared 230mya during the late triassic period so it was well before the dinos time : )


When did pterosaurs become extinct?

the same time as dinos became extinct. 65 million years ago


What were 3 dinos that went extinct 65 million years ago?

Pterodactyl, Tyrannosaurus Rex, brontosaurus.


How did dinasaurs get extinct?

well there are many ways they have had gotten extinct some say it was a change in climate ( ice age) or it could have been a meteor scientist are still arguing to answer this question ( i personaly think that it was a change in climate because it explains all those furry critters like the mamonth plus if a metor hit it would maybe cause the earth's orbit to change a little yes i know i smart smart ) :) :) I dont believe either of those, but, maybe they just died? o.O


What killed off the dinos?

Who saved Halawod and Alunsina from being drowned in a flood? Why do you think she saved the couple? Explain