Q: What is harmless water vapor, for a powerplant?


Read this paragraph and choose the correct option from the provided answers:

Steam rises from the cooling towers of this nuclear power plant. The steam is only harmless water vapor. Unlike a power plant that burns fossil fuel, a nuclear power plant doesn’t release pollution into the air. That’s because a nuclear power plant produces power by nuclear fission, a type of nuclear reaction.

 Choices:

- wind

- plasma

- fog

- steam


A:
steam