I believe the answer is: Cyclones.
Cyclones happen when a mass of air rotates on strong center within the low atmospheric pressure.
This mass of air is often accompanied by thunderstorms and could be originated from both tropical or subtropical waters.
The differences between physiological<span> and </span>psychological needs<span> are that </span>physiological needs<span> deal primarily with basic external </span>needs<span> for the care and maintenance of the human body. ... These </span>physiological needs<span> include simple basic </span>needs<span> such as nourishing food, clean water, shelter, and clean air.</span>
An elector has a pledge to vote according to an agreement. If the elector failed to vote the candidate they pledge to vote, they are now called faithless elector. However, based on the study faithless electors are a few and had not affected the voting process. Still, this only shows that they don't keep their pledge and do not trust the candidate that they supposed to vote.