Flashcards in The Earth's atmosphere Deck (6)
What was the Earth's early atmosphere formed by?
What did the Earth's early atmosphere consist of?
mainly carbon dioxide
Also small amounts of:
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.