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6.3 Interpreting and interacting with earth systems

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Question 16

A geologist estimates that coal seams contain a huge amount of carbon.

Which interpretation of this finding is consistent with the model of Earth's early atmosphere?

[1]
A

Carbon may have been stored in coal before carbon dioxide entered the atmosphere.

B

Coal formation may have produced the carbon dioxide that remains in the atmosphere today.

C

Some of this stored carbon may once have been carbon dioxide in the atmosphere.

D

Coal seams may have released carbon dioxide and created the atmosphere around the early Earth.

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6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

109 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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