(Blank)
(Blank)
100

what are the three types of volcanoes?

cinder cone, composite,shield

100

what three pieces of evidence did the scientist use to support his theory of continental drift. 

mountain ranges, fossils, weather patterns. 

200

what two plates are volcanoes most likely found on?

convergent, and divergent. 
200

what causes sea floor spreading ?

convection currents

300

what was the largest volcanic eruption in history, what was the name of the volcano?

supervolcano.


300

what type of stress causes mid ocean ridges 

tension


400

where do volcanoes form away from plate boundaries ?

hot spots

400

what causes convection currents ?

the uneven heating in earths mantle


500

name the three types of stress

compression tension shearing

500
at what zones do deep ocean trenches form at

subduction