Explain the effect job specialization had on the development of societies in Southwest Asia.


Surplus food leads to job specialization because not every one needs to be farming. THis leads to some people being able to take up other things, such as metal work.

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So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen