Which of these statements about the medians and altitudes are correct?

Its in the national history museum and you can't se the original because its locked away in a vault 

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 process by weathered rock and mineral particles are removed from one area and transported elsewhere

Forms from the water cycle