Card 1 of 23
Dry air is roughly [ ] and [ ].
A
Dry air is roughly 21% nitrogen and 78% oxygen.
B
Dry air is roughly 78% nitrogen and 21% oxygen.
C
Dry air is roughly 78% nitrogen and 21% carbon dioxide.
D
Dry air is roughly 70% nitrogen and 29% oxygen.
Card 1 of 23
Interpreting and interacting with earth systems Flashcards
23 flashcards on OCR GCSE Chemistry Interpreting and interacting with earth systems: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier).