This diagram covers Composition of Earth's Atmosphere within Composition of Atmosphere for GCSE Chemistry. Revise Composition of Atmosphere in Atmosphere for GCSE Chemistry with 20 exam-style questions and 12 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
📐 Composition of Earth's Atmosphere
Figure 1: The approximate composition of Earth's atmosphere today.
Practice questions for Composition of Atmosphere
What is the approximate percentage of nitrogen in the current atmosphere?
Describe how Earth's early atmosphere was formed.
Quick recall flashcards
What percentage of the atmosphere is CO₂?
About 0.04%
How was oxygen added to the atmosphere?
Photosynthesis by plants and algae