earth's major tectonic processes defintions

Question 1

plate tectonics

Answer 1

a group of theories developed in the 1960’s/70’s which links sea-floor spreading, continental drift, earthquake and volcanic activity and orogenesis

Question 2

tectonic plates

Answer 2

a large slab of crust that floats on the earth’s semi-molten interior (mantle)

Question 3

plate margin

Answer 3

where two or more tectonic plates meet

Question 4

convection currents

Answer 4

currents of hot rock in the mantle that rise from the core and explain the movements of tectonic plates