Given a scientific passage and an answer, generate a question for the given answer.

[Q]: Passage: Sources of voltage include electric generators and cells. Electric generators change kinetic energy to electrical energy. Chemical cells change chemical energy to electrical energy, and solar cells change solar energy to electrical energy. Answer: electrical
[A]: Electric generators change kinetic energy to what type of energy?

[Q]: Passage: Prevailing winds are the result of atmospheric circulation cells. They influence the climate of a region. Answer: climate
[A]: What do prevailing winds influence?

[Q]: Passage: Balanced chemical reactions are balanced in terms of moles. Answer: terms of moles
[A]:
Balanced chemical reactions are balanced in what?