Which of the following best illustrates sound science?

The choice that best illustrates sound science is the measurement of wind velocities to determine the cost-effectiveness of windmills in a region. This process involves empirical data collection and analysis, which are fundamental aspects of scientific inquiry. By measuring wind velocities, researchers can assess the potential energy output of windmills based on actual environmental conditions, enabling informed decision-making about the feasibility and efficiency of wind energy in that area.

Sound science is characterized by systematic observation, experimentation, and data analysis, and it seeks to provide objective findings that contribute to understanding environmental issues. This choice exemplifies that approach by relying on quantifiable data to draw conclusions about energy options, which can further guide policy and investments.

In contrast, the other options lack the scientific rigor that defines sound science. Lobbying for increased drilling focuses more on advocacy and political influence rather than empirical evidence. Selecting energy sources based on profitability and tax yield prioritizes economic factors over scientific assessment. Lastly, while asking voters about windmills incorporates public opinion, it does not directly involve scientific data or analysis that would lead to sound environmental conclusions.