Subduction is much less likely to occur when two continental plates
collide because
A. the plates are of equal density.
B. continental plates are so old.
C. continental plates are not subject to plate
tectonics.
D. in order for subduction to occur a volcano must
form.

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.

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