Which of the following best illustrates sustainability?
Constructing coal mines that do not require extensive surface excavations Upgrading computers every few years to improve performance Using solar panels on rooftops to generate electricity Converting the source of fuel for automobiles from gasoline to natural gas
The option that best illustrates sustainability is:
Using solar panels on rooftops to generate electricity.
This choice reflects a sustainable practice because it harnesses renewable energy, reduces reliance on fossil fuels, and minimizes environmental impact. The other options either involve non-renewable resources or do not significantly contribute to long-term sustainability.