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TECTONIC PLATES

Across
layer of the earth's atmosphere above the troposphere
Inner most part of the core
linear feature that exists between two tectonic plates that are moving away from each other.
planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock mass movement.
the gradual movement of the continents across the earth's surface through geological time
a small area or region with a relatively hot temperature in comparison to its surroundings.
actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide
the lowest region of the atmosphere
region of the atmosphere above the mesosphere
the two sub-layers of the earth's crust (lithosphere) that move, float, and sometimes fracture and whose interaction causes continental drift, earthquakes, volcanoes, mountains, and oceanic trenches
Upper layer of the mantle
a geologist and a United States Navy officer in World War II.
Down
hypothetical supercontinent that included all current land masses
the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
A current in a fluid that ends with convection
actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide
Outermost layer of a planet
above the stratosphere and below the thermosphere
Between core and the crust