Earth's spheres correct answers lithosphere, atmosphere, hydrosphere, biosphere
Earth's core levels correct answers - inner core; solid
- outer core; liquid
- mantle
- asthenosphere
- lithosphere (earth's surface)
Earth's surface composed of... correct answers continental crust and oceanic crust
Which is denser, oceanic crust or continental crust? correct answers oceanic
Plate tectonics theory correct answers a model of movement of Earth's crust
Convection currents exist in cells in the... correct answers lower mantle and the upper mantle
(asthenosphere)
Wilson Cycle (1960's) Theory correct answers Wilson proposed that land masses repeatedly join
to form a supercontinent, and then split apart
Why are fossil remains significant to proving continental drift? correct answers fossil remains
provide evidence from continent to continent that they were once connected
divergent boundary correct answers spreading apart
constructive (oceanic lithosphere created)
forms ridge/rift
volcanic activity (sea floor spreading)
Convergent boundary correct answers subduction destructive (oceanic lithosphere destroyed)
forms trenches
volcanic activity
transform boundary correct answers lateral sliding
neutral (doesn't create or destroy)
doesn't form anything
NO volcanic activity (earthquakes)
define faults correct answers fractures in the earth's crust caused by stress
Types of faults correct answers Type 1: normal fault
Type 2: reverse fault
Type 3: Strike-slip fault (on same plane)(ex: San Andreas Fault)