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9.2.2 How the atmosphere evolved

Card 1 of 20

Which gas was abundant in the early atmosphere before the oceans formed?

A

Water vapour.

B

No - it was locked away in oceans and rock.

C

It cooled below its boiling point.

D

Photosynthesis released oxygen into the atmosphere.

Card 1 of 20

9.2.2 How the atmosphere evolved Flashcards

  1. GCSE
  2. /Chemistry
  3. /9.2.2 How the atmosphere evolved

20 flashcards on Edexcel GCSE Chemistry 9.2.2 How the atmosphere evolved: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.

Flashcards