There is the famous crater in Arizona, known as Meteor Crater or Barringer Crater. It is not actually meteors that cause craters. Meteors are destroyed in the Earth's atmosphere. If they survive the Earth's atmosphere and then land on Earth, they are known as meteorites. So it is meteorites that actually cause craters.
How big it is, how fast it is, what it is made of and where it hits.
Probably by a big explosion caused by a meteor or a comet
It wasn't that big! The theory is that a large meteor hit the Earth and the explosion caused a large amount of dust in the upper atmosphere which caused climate change and the dinosaurs (or most of them) didn't survive.
It is caused by a collision of smaller body called the meteor, with the surface.
Some craters are caused by meteorites; for example, the Barringer Meteor Crater near Winslow, AZ, USA is probably the best known big crater. But craters can be caused by volcanoes or by explosions as well. Although, to be honest, a meteor crater is caused by an explosion, too, when kinetic energy is converted abruptly into heat.
there isn't any because a big meteor came and wiped them out
depends how big it is
There was a big accident with a meteor.
525 feet
a big, round, fireball
Don't be worrying! The meteor that your talking about will not go into 2012,but it will be in 2032.The meteor that killed the dinosaurs was 7 miles long.The meteor is called J002E3.So,don't worry!
700.5 metres long