Yep, otherwise it'd just be added to the bay.
I just cut and paste that article.
It's very counter-intuitive, but I guess Nitrogen is much heavier than H20 vapor and H20 vapor displaces it with rising humidity, causing the air to get less dense (weigh less per unit volume). Sort of like substituting feathers for gold in a fixed volume.
Nothing else to do whilst I take these idiot's money online
(well, I could be watching porn... LMAO) but prolly better to learn sumtin.
Man.. it's really raining big time now.