Skip to content

Course home

9.1.4 How carbon dioxide decreased

Which process removed carbon dioxide from the early atmosphere while releasing oxygen?

A

Respiration removed carbon dioxide from the air and added oxygen.

B

Combustion removed carbon dioxide from the air and added oxygen.

C

Decomposition removed carbon dioxide from the air and added oxygen.

D

Photosynthesis removed carbon dioxide from the air and added oxygen.

9.1.4 How carbon dioxide decreased Flashcards

  1. GCSE
  2. /Chemistry
  3. /9.1.4 How carbon dioxide decreased

Flashcards for AQA GCSE Chemistry 9.1.4 How carbon dioxide decreased, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 24 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.