During the cold war the US in US SR add many conflicts in the Cuban missile crisis nearly led to war why did the crisis start

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 d) rift

Radius energy hope this