Which mountain ranges are part of the cordilleras?
blue ridge mountains
laurentian mountains
rocky mountains
sierra madre occidental

Sierra Madre Occidental.

Explanation:

It is a major mountain system of the North American cordillera and are northwest and southeast, and the western Mexico and the Gulf of California. And this consists of a series of the mountainous ranges with a height of 10,863 ft. A feature like the canyons that cut the rovers of the wet western slopes exists in addition to those of the northeastern slopes. This range is parallel to the coastal part of the Mexico and to the south of the Arizona border.

Nigeria and south africa

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