How does the Sun transfer its energy to areas A and
B?
Which statement compares how much heat is
absorbed by areas A and B?
Which statement compares the temperatures of areas
A and B?

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 metamorphic rock;