Answer:
at that time cast differentiation was purely based on the work people did rather than what their answers used it so you could very easily change your cast so having the cast system helped develop the city tell it to plays and it was easier for people to know who is doing one kind of help to build up
The awnser to a political equilibrium Is A
The independent variable is the temperature.
The study aims to assess how the temperature level affects another variable, that, in turn, will be the dependent variable: the mood of the participants. The aim of the study is to conclude whether it is possible or not to infer causality between those two, in other words, to see whether different levels of temperature (<em>the cause</em>), trigger the emergence of a certain type of mood <em>(the effect).</em>
