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Transcript 
Mountain Building and
Erosion
Building Up &
Tearing Down
Two
Constant
Forces
There is
always
competition
between
these forces
to shape the
landscape of
the Earth.
Building Up
Folding
Compression
and
squeezing
bends and
twists rocks.
Rocks do
not break
apart.
Building Up
Folding
Compression
and
squeezing
bends and
twists rocks.
Rocks do
not break
apart.
Building Up
Faulting
Compression
and pressures
so great that
massive
blocks of rock
fracture and
break apart.
Building Up
Faulting
Compression
and pressures
so great that
massive
blocks of rock
fracture and
break apart.
Ex. The Rocky
Mountains
Building Up
Volcanism
The creation of
mountains
through the
growth of
volcanoes as
they force
magma to the
surface.
Mountains
formed through
volcanism can
be “live” or
dormant.
Building Up
Volcanism
The creation of
mountains
through the
growth of
volcanoes as
they force
magma to the
surface.
Mountains
formed through
volcanism can
be “live” or
dormant.
Tearing Down
Tearing Down
Erosion &
Weathering
Temperature,
running water,
ice, wind, plants
and chemical
reactions are
the major
forces that
erode the land.
Tearing Down
Erosion &
Weathering
Temperature,
running water,
ice, wind, plants
and chemical
reactions are
the major
forces that
erode the land.
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