Shared Flashcard Set

Details

Chem Com Test
test for April
8
Other
Not Applicable
04/30/2004

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Cards

Term
How did the first atmopshere form?
Definition
exploding gas and rock from stars
Term
What happend to the earths first atmosphere?
Definition
Helium and Hydrogen went away because solar winds
Term
How did the second atmopphere form?
Definition
rocks let all of there water out
Term
What was the second atmosphere made out?
Definition
Water Vapor, Nitrogen, Carbon Doxide
Term
Where did Nitrogen Carbon Doxide and Water Vapor go?
Definition
Water-rained and made oceas
Nitrogen Stayed
Carbon Dixude into oceans
Term
What is the curent atmopsphere of earth?
Definition
Nitrogen Oxygen Carbon doxide
Term
Why is Nitrogen good for humans?
Definition
nedd it for amino acids in tissues
Term
Whya is oxygen good for earth?
Definition
supports combustion and production of food
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