Other questions in this quiz

2. The Earth has a layered structure but how many layers is there?

  • 2
  • 5
  • 4
  • 0

3. What percentage of carbon dioxide is in the Earth atmosphere?

  • 0
  • 1
  • 10
  • 21

4. What percentage of oxygen is in the Earth atmosphere?

  • 21
  • 71
  • 65
  • 99

5. What is the 8th planent away from the sun?

  • Mars
  • Pluto
  • Neptune
  • Earth

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