1. What layer of the Earth is made up of tectonic plates?
a.crust
b. inner core
c. outer core
d. mantle
2. This refers to the amount of energy realsed by the earthquake from its orgin.
a. focus
b. epicenter
c. intensity
d. magnitude
3. What is the Pacific ring of fire?
a. an area where crustal plates are hard
b. an area where crustal plates are weak
c. an area without crustal plates
d. an area without earthquakes