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  1. L

    Quick Question on Lithium Batteries

    hilly is correct, it doesn't matter which lithium cell, as long as you can do everything required by the dot point
  2. L

    Buy Fe2O3 and Aluminium Powder in NSW??

    you can get both easil;y in australia. don't try thermite, it's quite dangerous.
  3. L

    Guano as a natural resource

    is superphoshpate really a shrinking world resource? i don't think so. guano probably is. superphosphate is a fertiliser - just like guano. BUT guano is an organinc fertiliser, superphosphate is an inorganic one. if guano is your diminishing resource, then superphosphate and other alternatives...
  4. L

    Shrinking World Resources

    i've seen excellent reports on ivory, ebony, narural rubber and uranium. try some of these
  5. L

    Shrinking World Resource - Wood

    your teacher is spot on. wood is fine, the dot point talks about a shrinking natural resource, not a renewable or nonrenewable one.
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