ANSWERS: 2
  • I'd say either Life & Society or Science. An Ecology subcategory in Science and/or Conservation in L&S would cover it.
  • Recycling >> "Household recycling, what can and can't be put in the plastic bins" http://www.answerbag.com/c_view/4666 Ecology >> "The study of the relationships between organisms and their environment" http://www.answerbag.com/c_view/3583 Environmental Engineering >> "Shaping our environment through science" http://www.answerbag.com/c_view/3905 I would choose one of those.

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