A. I think there is still some room in energy.

The truth is there's not a lot of difference in the energy.

The cost in energy to open one door, of course, was too small to measure.

We must not cut our investments in green energy and education.

Moving from a lower key to a higher often indicates an increase in energy.

"There's been a change in both spirit and energy within the last seven years."

He is also involved in environmental issues and renewable energy.

Companies in natural resources and energy were also ranked well.

"Only I know what this third victory has cost me in energy."

If either of you weren't putting in the energy to continue her fight, I think she would drop it.