consider the changes that the colorado river has undergone, especially as it relates to human activity in the region and the environmental effects of that activity what social and cultural actions are affecting the river? what changes might the people living in the southwestern U. S. need to adopt?

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

The answer is gross domestic product. hope this