Question 1
The most important agent(s) of metamorphism, according to your text, is (are) ________.
◦ differential stress
◦ confining pressure
◦ heat
◦ chemically active fluids
Question 2
The major role of thermal energy (heat) in metamorphism is ________.
◦ reducing the strength of rocks so that stress can be an effective agent of change
◦ providing energy for the physical changes that occur during metamorphism
◦ increasing the processes of dissolution and flow of different minerals
◦ driving chemical reactions that lead to recrystallization