Other questions in this quiz

2. what is an enviromental impact of salt mining?

  • only works where its really sunny
  • hmm
  • can cause subsidence (buildings falling down)
  • needs wood as a fuel to heat it up (cutting down trees)

3. who thought of the plate tectonic theory?

  • Albert Einstein
  • Nicholas le blanc
  • Alfred Wegner
  • Charles Darwin

4. which of these does salt not have to pure to use?

  • not sure
  • flavouring food
  • Road grit (winter snow ice melting)
  • preserving food

5. which of these reasons is wrong; "toymakers use PVC because..."

  • can be mixed with pigments to give bright colours
  • easy to keep clean
  • its safe and untoxic
  • stands to rough play
  • it can be rigid or flexable

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