Search results

  1. C

    Is it normal to be stressing about the HSC already?

    stop wasting your lives and go and enjoy life!!! party.... stay out....do nothing whatever just dont waste a whole year..... a year thats suppossed to be one of the best!!!
  2. C

    renewable ethylene

    i think the question is worded incorrectly. its not whether or not ethylene itself is a renewable resource it is whether or not its sources are renewable or not. industrial ethylene can be produced from both catalytic and thermal cracking of fractions of petroleum (which is a fossil fuel) or it...
Top