Impact Cratering: Which is not evidence that a large impact killed off the dinos

Question

Impact Cratering: Which is not evidence that a large impact killed off the dinosaurs?

An abundance of Iridium found at the K-P boundary

Fossilized dinosaurs with severe burns

Shocked quartz found at the K-P boundary

The Chicxulub Crater is the right size and age

QUESTION 4

Impact Cratering: Why do asteroid impacts create such large craters?

Because they compress the ground surface when they hit it, forming a depression.

Because stopping an object that is moving as fast as an asteroid causes it to explode like a bomb.

Because meteors are so hot when they hit the surface that they explode like a bomb.

None of the above.

QUESTION 5

The Widmanstätten patterns found in some meteorites show that the material:

cooled very slowly.

cooled very rapidly.

was never heated to the point of being molten.

was molten just before it entered Earth's atmosphere.

is composed primarily of organic compounds.

An abundance of Iridium found at the K-P boundary

Fossilized dinosaurs with severe burns

Shocked quartz found at the K-P boundary

The Chicxulub Crater is the right size and age

Explanation / Answer

Impact Cratering: Which is not evidence that a large impact killed off the dinosaurs?

An abundance of Iridium found at the K-P boundary: The high amount of iridium which is found in asteroid tells that there was an impact about 65 millions years ago when dinosaurs died.

Shocked quartz found at the K-P boundary: The quartz are deformed due to high pressure application. Conditions which will generate when impact occurs

The Chicxulub Crater is the right size and age: Is of 150 km in size which can be created by 10-25 km asteroid and it is 66 million year old.

Fossilized dinosaurs with severe burns: This is the answer as the impact would have killed the dinosaurs in 150 km y burning to ashes but rest of them are not burned.

QUESTION 4

Because they compress the ground surface when they hit it, forming a depression.

QUESTION 5

cooled very slowly.

The Chicxulub Crater is the right size and age: Is of 150 km in size which can be created by 10-25 km asteroid and it is 66 million year old.

Fossilized dinosaurs with severe burns: This is the answer as the impact would have killed the dinosaurs in 150 km y burning to ashes but rest of them are not burned.

QUESTION 4

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