Skip to content

Course home

Sign up

9.1 The composition and evolution of the Earth's atmosphere

EasyMediumHard
12345678910111213
Question 11
F

Why have theories about the Earth's early atmosphere changed and developed over time?

[1]
A

The composition of the atmosphere has changed since the theories were made

B

Scientists have measured the gases of the early atmosphere directly

C

New evidence has been found over time, so the theories were revised

D

The atmospheres of Mars and of Venus have changed over the same time

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