Awaste collection tank has a density of 0.788 g/cm3 and can hold 18,754 kg of methanol. what is the volume of the waste collection tank?

You convert 18,754 and convert it into grams which is 18,754000 g.
Next, take 18,754000g and divide it by 0.788g.

That's how you will get your )

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.