Energy efficiency could be improved by all of the following, except
a. buying cars with good fuel mileage
b. buying energy-efficient appliances
c. keeping car engines tuned
d. removing insulation from attics
e. buying fluorescent light bulbs
Answer: D
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.