Is the following sentence true or false?
Warm water cools the air above it

It dependes

Explanation: which kind of warm water? Hot or normal warm? Because if hot then yes (true) if normal warm then no (false) if it is hot water then the steam coming from it makes the air above it warm. If it is normal warm then there is not enough ( I should say hotness? I don’t know any other way to say it) to make steam to make the air above it hot.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).