Living in the Environment 18th Edition by Tyler Miller,Scott Spoolman

Exercise 8

For each of the following actions, state one or more of the three scientific principles of sustainability that are involved: (a) recycling aluminum cans; (b) using a rake instead of a leaf blower; (c) walking or bicycling to class instead of driving; (d) taking your own reusable bags to the grocery store to carry your purchases home; (e) volunteering to help restore a prairie; and (f) lobbying elected officials to require that at least 20% of your country's electricity be produced with renewable wind and solar power by 2020.