• Revision 1
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  • What happens when? (Bacteria disappears completely)
    Dead bodies will cover the Earth and chemical elements inside the dead bodies won't be recycled.
  • What happens when? (A bar magnet is hanged to move freely)
    It takes a fixed direction which is north-south direction of the Earth.
  • How can you separate? (Salt from salty solution)
    Evaporation process
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