Skip to content

Course home

Sign up

9.1 The composition and evolution of the Earth's atmosphere

EasyMediumHard
12345678910111213
Question 4
F

Why is the evidence for the composition of the Earth's early atmosphere limited?

[1]
A

The time scale involved is about 4.6 billion years

B

The early atmosphere contained no oxygen gas at all

C

Volcanic gases cannot be collected by scientists today

D

Volcanic activity has continued throughout Earth's history

Markscheme

9.1 The composition and evolution of the Earth's atmosphere Questions

  1. GCSE
  2. /Chemistry
  3. /9.1 The composition and evolution of the Earth's atmosphere

40 exam-style questions on AQA GCSE Chemistry 9.1 The composition and evolution of the Earth's atmosphere, covering 9.1.1 The proportions of different gases in the atmosphere, 9.1.2 The Earth's early atmosphere, 9.1.3 How oxygen increased, and 9.1.4 How carbon dioxide decreased. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank