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Geography unit1 chapter 2
Tae Hun Kim
9.22.2009
1. Layers of the earth.
Outer Core:
1,380 miles thick
Iron Core:
760 mile radius
Crust:
19-37 mile thick
Upper mantle:
500 miles thick
Lower mantle:
1, 3000 miles thick
Lithosphere:
30-90 miles thick
Asthenosphere:
400 mile thick
2. Hydrologic cycle
Evaporation from the oceans
and other bodies of water
sends 102,000 cubic miles of
water into the atmosphere.
Water from rain and snow
flows into rivers, oceans and
sometimes, underground
water tables.
A total of approximately 119,000
cubic miles of water evaporates into
the atmosphere every year and
returns as precipitation-rain or snow.
3. Chart of the landforms
Land forms
Picture
Description
Plains
An area of land with
relatively high relief, as
well as flat
Hills
A landform that expends
above the surrounding
terrain, in limited area.
Mountains
Natural elevation of the
earth’s surface with
steep sides and greater
height than a hill
Rivers
Natural water course,
usually fresh water
flowing towards an
ocean, a lake, a sea or
another river
Delta
A triangular area of land
formed from deposits at
the mouth of a river
Volcano
An opening In the earth,
usually raised, through
which gases and lava
escape from the earth’s
interior
Glacier
A large ice mass that
moves slowly down a
mountain of over land
Swamp
A lowland region that is
saturated by water
Jungle
Dense forest in a hot
Climate such as a
tropical rainforest
valley
Low land between hills
or mountains