system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a major difference between steam and fog? At a basic understanding, they’re both just water in a gaseous state right?
gpt
Actually, not quite. Steam is gaseous water, kept in vapor form thanks to its temperature. If allowed to cool, some would condense back into liquid.

Fog is actually liquid water as well, but in tiny enough droplets that it doesn't fall to the ground. Steam and water vapor are both invisible, while clouds and fog are materially the same thing.