WJEC GCSE Chemistry 3410QS · 1.4(e)
Present atmosphere and how it has changed
- Code
- 1.4(e)
- In
- 1.4 The Ever-changing Earth
- Topic
- 1 Unit 1: Chemical Substances, Reactions and Essential Resources
- Course
- GCSE Chemistry 3410QS
- Board
- WJEC
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
Points in 1.4 The Ever-changing Earth
- 1.4(a) Structure of the Earth
- 1.4(b) Plate tectonics and continental drift
- 1.4(c) Processes at plate boundaries
- 1.4(d) Formation of the early atmosphere
- 1.4(e) Present atmosphere and how it has changed
- 1.4(f) Maintaining atmospheric oxygen and carbon dioxide
- 1.4(g) Effects of carbon dioxide and sulfur dioxide emissions
- 1.4(h) Tackling global warming and acid rain
- 1.4(i) The air as a source of nitrogen, oxygen, neon and argon
- 1.4(j) The tests used to identify oxygen gas and carbon dioxide gas