<span>Cyclone low-pressure storm of high winds that develop over water are called : Tropical cyclone.
During this process, the rotating storm happened within a closed -low level atmospheric circulation with spiral arrangement of thunderstorm, which will resulted in heavy amount of rain.</span>
I find that the best answer is the following one:
c. determined by factors outside our control
For example, even though life is very hard in the very hot and the very cold regions, we can't control it: so this is an example of a physical environment that is hard to control.
In comparison, it is often easier to describe than our social environment.
Uneven warming by the sun I believe
Parts of Antarctica are considered to be deserts because it is too dry, there's no rainfall because it is too cold and the amount of snow that falls yearly is comparable with the amount of rains that falls in thee driest deserts on the planet, thus the lack of rain and snow makes it a proper desert, cold desert.
