Other questions in this quiz

2. What % of the Earth's atmosphere is mainly nitrogen and oxygen?

  • 98%
  • 99%
  • 90%

3. Non-metal atoms combine to make

  • molecules
  • electrons
  • protons

4. Coal is a carbon. In a plentiful air supply it burns to form .....

  • Carbon
  • carbon dioxide
  • soot

5. In a limited supply of air Coal burns to form...

  • Soot
  • Carbon Monoxide
  • Carbon Dioxide

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