Therefore training for many sports demands that both energy producing systems be developed.

If this is the case, where does the energy come from to produce the vigorous boiling.

The energy produced there, in the form of photons, is not immediately released to space.

The energy produced at the farm provides over 7,800 houses worth of electricity.

But Organic food needs more energy and more land to produce.

I argued to myself that that energy must produce results.

The turbines and energy produced are still strongly associated with the port.

Jusczyk stated that people should understand the direct relationship between their movement and the energy produced.

The quiet energy of Mac's last words produced a momentary silence.

These fuels usually take energy to produce and transport, so they will not be carbon neutral on the ground either!