Earth's Early Atmosphere (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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12 cards from this deck
Duration of modern atmosphere stability
Duration of modern atmosphere stability
200 million years
Planets that early Earth's atmosphere resembled
Planets that early Earth's atmosphere resembled
Venus and Mars
Time period when Earth's atmosphere resembled Venus/Mars
Time period when Earth's atmosphere resembled Venus/Mars
First billion years
Main source of gases in early atmosphere
Main source of gases in early atmosphere
Volcanoes
Primary gas in Earth's early atmosphere
Primary gas in Earth's early atmosphere
Carbon dioxide ()
Oxygen levels in Earth's early atmosphere
Oxygen levels in Earth's early atmosphere
Very little to no oxygen
Gas in early atmosphere that later formed oceans
Gas in early atmosphere that later formed oceans
Water vapour ()
Early atmosphere gas with formula
Early atmosphere gas with formula
Methane
Early atmosphere gas with formula
Early atmosphere gas with formula
Ammonia
Source of nitrogen in early atmosphere
Source of nitrogen in early atmosphere
Volcanic activity
Time taken for Earth to cool enough for oceans to form
Time taken for Earth to cool enough for oceans to form
Millions of years
What water vapour formed when it condensed
What water vapour formed when it condensed
Oceans and seas