science

which of the following would decrease the human ecological footprint? 1) using bottled water instead of tap water 2) using public transportation instead of riding in a car 3) buying books instead of borrowing from the library 4) using hot water instead of cold to wash clothing I need help :(

asked by sf
  1. Which one do you think will help protect the environment? I would discard 1 and 4.

    posted by Jake

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