AtmosphereDiagram

Composition of Earth's Atmosphere

Part of Composition of Atmosphere — GCSE Chemistry

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 less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 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.

Topic position

Section 3 of 13

Practice

20 questions

Recall

12 flashcards

📐 Composition of Earth's Atmosphere

Pie chart showing Earth's atmosphere composition: Nitrogen 78%, Oxygen 21%, Argon 0.9%, Carbon dioxide 0.04%, and other trace gases

Figure 1: The approximate composition of Earth's atmosphere today.

Keep building this topic

Read this section alongside the surrounding pages in Composition of Atmosphere. That gives you the full topic sequence instead of a single isolated revision point.

Current Atmospheric Composition Evolution of the Atmosphere: Five Phases The Story of Our Air How Photosynthesis Changed the Atmosphere

Practice Questions for Composition of Atmosphere

What is the approximate percentage of nitrogen in the current atmosphere?

A. 21%
B. 0.04%
C. 78%
D. 50%

1 markfoundation

Describe how Earth's early atmosphere was formed.

3 marksstandard

Quick Recall Flashcards

How was oxygen added to the atmosphere?

Photosynthesis by plants and algae

What percentage of the atmosphere is CO₂?

About 0.04%

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Current Atmospheric Composition

Evolution of the Atmosphere: Five Phases