Dr. Jody Bourgeois - Earth and Space Science
"Brace for Impact! - How large impacts have changed the Earth"
1) The Earth and its Moon (or sister planet) have shared histories.
Which one should have had more impacts and why? Why does the Earth not
show clear evidence of impacts, as the Moon does?
2) What are two pieces of evidence that there was a major impact at the end
of the Cretaceous geological period? (not including extinction,
extinction is an effect, not evidence)
3) What are two ways that the end-Cretaceous impact may have contributed
to a mass extinction?
4) What is a tsunami? Give two differences between impact-generated and
earthquake-generated tsunamis.
Last modified: Wed Apr 13 12:05:58 PDT 2011