The great plains region was formed due to which of the following?
a. tectonic activity
b. the creation of primary landforms
c. the weathering of surface material
d. deposition of sediment by water, wind, or ice
*multiple select question*

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 steam fog;