Can you me with this. what is paleontology

Ok so paleontology is a rich field , imbued with a long and interesting passband an even more intriguing and hopeful future.It is also the studies of fossils of different species.

1) the science of the forms of life existing in former geologic periods, as represented by their fossils.

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

He got it right defiantly right