Water is brought from the sacramento valley to los angeles, a distance of almost 700 miles through

prudhoe bay

the california aqueduct

the rocky mountains

the trans-alaska pipeline

The California Aqueduct should be the answer.

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

Answer( genes );