Lesson 11 - Compare and contrast the erosional and depositional features of alpine glaciers and ice sheets (continental glaciers). What are the processes that result in these features and where are they located in reference to the glacier

Magma is outside the volcano  and lava is inside the volcano. 

Ithink the answer to that would be 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 accretion;