Why is this relationship shown as a cycle

For rock cycle, it’s just part of the system of rocks being created and destroyed in cycles. Since it’s a model that describes formation breakdown and reformation of rocks. And of course the result is either sedimentary, metamorphic, or igneous.

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

Tropical climate is experienced in the nothern countries of south america