do mass extinctions have anything to do with asteroid impacts?

Subject: do mass extinctions have anything to do with asteroid impacts?

Date: Mon Jan 11 12:24:52 1999
Posted by Sarah
Grade level: 10-12
School: cpcs
City: Billerica State/Province: Mass
Country: USA
Area of science: Astronomy
ID: 916079092.As

Message:


several times in earth's history, there have been mass 
extinctions. in school we are trying to figure out if there is a 
correlation between asteroid impacts and mass extinctions. is 
there any evidence that mass extinctions are caused by asteroid 
impacts?

Re: do mass extinctions have anything to do with asteroid impacts?

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