Other questions in this quiz

2. name two sub-atomic particles in the nucleus of an atom

  • neutron and proton
  • proton and electron
  • neutron and electron

3. why are vegatable oils important fuels and food?

  • they provide energy
  • they cook foods faster

4. the main compound of limestone is?

  • calcium hydroxide solution
  • calcium hydroxide
  • calcium carbonate
  • calcium oxide

5. why is the extraction of copper expensive?

  • copper is very reactive
  • many steps are involved
  • its a batch process
  • takes a lots of time


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