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6.3 Interpreting and interacting with earth systems

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Question 8

Scientists compare observed warming with results from climate models. The table shows the estimated rise in global average temperature since the late 1800s.

ResultsTemperature rise (°C)
Observed1.1
Models including human emissions and natural factors1.0
Models including natural factors only0.2

Explain what the results suggest about the contribution of human activity to climate change, and give one reason why the results do not remove all uncertainty.

[3]
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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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