9. Human conservation of energy resources can take any of the following forms except: A. trading in a large car for a smaller one with better gas mileage B. switching to the use of energy-efficient...

Extracted text: 9. Human conservation of energy resources can take any of the following forms except: A. trading in a large car for a smaller one with better gas mileage B. switching to the use of energy-efficient appliances C. buying foods that have been grown locally D. leaving power supplies turned on when not in use E. walking to school or work instead of driving (when possible)