Other questions in this quiz

2. Why has the percentage of hydrogen decreased from the early atmosphere to now?

  • It has been trapped underground
  • It's escaped from the atompshere
  • It dissolved in oceans and rivers
  • Human activity

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

  • Sulphur Dioxide
  • Ozone
  • Hydrogen
  • Carbon Monoxide

4. Why are the water vapour levels higher in summer?

  • Hotter average temperatures and longer day hours
  • Hotter average temperatures and less average rainfall
  • Hotter average temperatures and more average rainfall
  • Longer day hours and less average rainfall

5. Why has the percentage of oxygen increased from the early atmosphere to now?

  • The activity of bacteria
  • The photosynthesis of plants
  • Volcanic eruptions
  • Human respiration


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