If the equilibrium constants of the following equilibria, SO2(g) + 1/2O2(g) = SO3(g) and SO3(g) = SO2(g) + 1/2O2 (g) are K1 and K2 respectively. Which of the following
relation is correct?

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

Idk the answer sorry