Other questions in this quiz

2. Why do carbon dioxide levels rise at night?

  • Increased burning of fossil fuels
  • Plants don't photosynthesise
  • Plants photosynthesise less
  • Humans breathe more

3. Which of these gases is created using UV radiation?

  • Ozone
  • Sulphur Dioxide
  • Carbon Monoxide
  • Hydrogen

4. What percentage, on average, of the air is nitrogen?

  • 78%
  • 21%
  • 76%
  • 57%

5. Which one of these processes increases carbon dioxide levels?

  • Photosynthesis
  • Volcanic Activity
  • Dissolution in the oceans
  • Nitrogen Fixation

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