Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

تمرين 3

For each of the following actions, state one or more of the three principles of sustainability (Figure 1-2) that are involved: (a) recycling aluminum cans; (b) using a rake instead of 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; and (e) volunteering to help restore a prairie.