Well, they don't, actually. Hurricanes form in the more tropical regions, never the polar regions. Reason for that is basically there is more moisture in the atmosphere than in the polar regions. For a better explanation, please see the related question below.
Hurricanes
Hurricanes form in tropical regions but can move in to temperate regions. Tornadoes are very common in temperate regions, most notably the central United States.
The ocean. Hurricanes do not last long if the move over land or into a cold environment.
Between tropical zones and polar regions.
Both can occur in the tropics, though tornadoes are more common in temperate areas. All hurricanes form in the tropics but they can move into temperate regions.
Hurricanes
Hurricanes cannot happen in polar regions
Hurricanes form in tropical regions but can move in to temperate regions. Tornadoes are very common in temperate regions, most notably the central United States.
The ocean. Hurricanes do not last long if the move over land or into a cold environment.
Hurricanes and typhoons occur in tropical areas, but can move into extratropical areas as well. There are different types of cyclone, however. Tropical cyclones (hurricanes, typhoons, tropical storms and tropical depressions) form in tropical regions but extratropical and polar lows are cyclones as well.
The Antarctic Bottom Water, North Atlantic Deep Water, and Antarctic Intermediate Water are three density currents that form in polar regions.
Between tropical zones and polar regions.
Tropical regions are cooler , polar regions are colder
Yes, in the form of ice, mostly at the polar regions
The polar ice caps are only located in polar regions.
No, tornadoes most often form on land in temperate regions. Hurricanes normally form over tropical oceans.
Hydrogen bonds can be formed between regions of polar molecules that are positive charged. Some of them can be negatively charged.