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Flashcards in The Earth's atmosphere Deck (6)
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What was the Earth's early atmosphere formed by?

volcanic activity


What did the Earth's early atmosphere consist of?

mainly carbon dioxide
Also small amounts of:
-water vapour


What is the atmosphere?

The relatively thin layer of gases that surround Earth.


What is a carbon footprint?

The total amount of carbon dioxide and other greenhouse gases emitted over the full life cycle of a product, service or event.


What did photosynthesis do to the atmosphere?

-Decreased the amount of carbon dioxide.
-Produced more oxygen, making the Earth's atmosphere richer in oxygen, meaning animals could now survive.


What are the (3) main greenhouse gases?

-carbon dioxide
-water vapour