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Definition
Solid inner core, molten outer core, rock mantle and crust. |
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What is the solid inner core made out of? |
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Definition
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Definition
The boundary between the crust and mantle |
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Definition
brittle uppermost mantle and crust |
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Definition
below uppermost mantle and is plastic like |
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principle of isostatic balance |
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Definition
light color, low density and silicates + dominate |
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Deeper crust and ocean floor rock |
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Definition
darker and denser silicates and manganese dominates. |
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Highest elevation of 30,000 |
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Definition
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lowest belevation of -35000 |
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Definition
inorganic solids, crystalline in nature, + definite chemical compositions |
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Definition
more complexed; composed of mineral assemblages |
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Definition
igneous, sedimentary and metamorphic |
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Definition
dominated by exposed sedimentary outcrops but sedimentary least in volume |
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Definition
dominated by extrusive igneous basalt rock. |
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Definition
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Definition
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intrusive igneous diorite and extrusive andesite |
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examples of sedimentary rock |
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Definition
shale, limestone, sandstone + conglomerate |
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Definition
either sedimentary or igneous formed under heat and pressure |
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Term
metamorphosed rock example |
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Definition
shale>slate and limestone>marble |
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Definition
coal, oil, natural gas, relates to some layers of sedimentary rock |
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Term
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Definition
is costly, low harvest/miner,silicosis, explosions, and toxic gases |
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Term
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Definition
is cheap, hi harvest/miner, less accidents, less disease, slight environmental harm |
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Definition
not as cheap as area strip, hi harvest/miner, some accidents, no disease, great environmental harm. |
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Term
what are plutonic rock forms |
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Definition
solidified intrusive magmas |
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Term
another name for plutonic rock forms |
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Definition
batholiths, stock, dikes, sills, laccoliths |
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Term
rock state of southern indiana |
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Definition
maturely dissected plateu with hard sedimentary rock. |
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southern indiana consists of.. |
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Definition
hilla, weak sedimentary rock and valleys |
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Term
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Definition
CAVES, SINKHOLES, underground rovers. jointed limestone rock from bloomington to corydon |
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Definition
an area of low hills, about 500' releif |
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Definition
full of shales and low rolling plains |
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Definition
author of continental drift |
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Term
what did the continental draft theory lack? |
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Definition
mechanism for continental movement |
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Term
which way does the internal heat of earth's core radiate |
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Definition
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Term
what is the continental drift now called |
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Definition
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Examples of a plate tectonic |
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Definition
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Definition
pacific fire ring subduction |
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Term
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Definition
Spreading along parellel faults producing rifting and terrancing in east Africa |
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Term
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Definition
haawaiian islands and their move northwestward on pacific ocean plate |
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Term
when did paleomagnic research start? |
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Definition
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Term
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Definition
proof of plate movement by earthquakes, seismograph,printed seismograph, seisomometers, richter and moment magnitudes |
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Term
Primary waves are also known as |
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Definition
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Secondary waves are also known as |
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Definition
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Definition
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secondary lag time cannot what? |
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Definition
penetrate liquid molten outer core. |
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Definition
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Definition
earthquakes and explosive volcanoes > pacific fire ring |
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Definition
mediterranean-Himalayan axis |
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Definition
east african rift zone of parallel faulting |
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Definition
involves folding and faulting processes |
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Definition
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Term
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Definition
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what do eroded surfaces analyze with? |
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Definition
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Definition
expansion processes involving zones of rock weakness |
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Definition
compression precesses involving zones of rock weakness, give over hang cliffs |
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Definition
low angled zones of rock weakness |
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Term
what are the volcano activity classes? |
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Definition
active, dormant + extinct |
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What are the profile classes? |
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Definition
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Term
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Definition
large explosive high viscosty lavas, varies of eruption, bombs, ash, + lahars |
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what is weathering physical? |
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Definition
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what is weathering chemical? |
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Definition
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Term
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Definition
plant wedge, frost wedge, salt crystal growth, exfoiliation by unloading or temp change |
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Definition
oxidation, hydration, hydrolosis, carbonation |
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Term
what is mass wasting caused by gravity acting on weather? |
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Definition
landslides, rockfalls, solicluct, etc |
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Term
what is the hydrologic cycle? |
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Definition
about 70% of the precipiation that falls on landscapes is evapotranspirated, 30% that falls on landscapes runs off thorough streams or temporarily stored as groundwater |
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Term
what do you use soil water for? |
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Definition
used by crops that can wildly fluctuate |
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Term
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Definition
boundary between saturated zone and unsaturated zones of ground water |
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Term
what decreases as one progresses from the east coast to the Rocky Mountains? |
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Definition
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Term
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Definition
rock layers that are either or both jointed and prorous in nature |
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Term
what do aquicludes reject? |
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Definition
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Term
what can aquicludes produce? |
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Definition
free flowing artesian springs and wells |
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Definition
relates to rock types thst dissovle |
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Term
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Definition
relates to rock types that don't dissovle |
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Definition
they can either stop or easily slow the process, purple corwn vetch |
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Term
what do profiles of humid landscapes vs arid landscapes do |
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Definition
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Term
what is the slope of landscape measures by? |
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Definition
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what are gradients of streams measures by>? |
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Definition
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what are the rocky mountains of united states? |
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Definition
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Term
what are the appalachian mountains of united states |
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Definition
secondary continental divide |
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Term
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Definition
divide or interflueve, basin or watershed, source or headwaters |
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Definition
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Definition
narrowing of channel, left vs right bank, mouth, delta, distrib |
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Term
why are central surface areas of rivers flow fastest? |
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Definition
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why are rivers considered hydrolysis saws? |
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Definition
because of stones and rocks cut because of traction |
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Term
what are course particles and small stones bounced by? |
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Definition
saltation process, clay moves by suspension |
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Term
what decreases as rivers age? |
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Definition
it's gradient and its velocity |
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Term
aging of rivers and valleys |
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Definition
youth falls, rapids present if rock density varies maturity, meandering from ecess energy, stream slows, valley goes from a v to u shape. |
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Term
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Definition
begins in maturity and widens and meanders may become server in old age |
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Term
what is the colorado river an example of? |
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Definition
mature stream in a youthful valley |
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Term
what causes general flooding |
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Definition
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Term
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Definition
stalled storms in upper tributaries servere where land is steep and vegetation is sparse. |
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Term
where can water erosion be severe? |
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Definition
dry areas if a long period of time is involved. |
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Term
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Definition
relatively flat, and are vulernable to wind eros-reduction frict and scanty vegetation |
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Term
how are most desert surfaces? |
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Definition
rocky or stony because of deflation of the landscape |
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Term
what does sand pile into? |
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Definition
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Term
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Definition
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What is found at the base of a mountain? |
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Definition
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what does the merging of alluvial fans produce? |
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Definition
bajadas that typically have good soils |
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Term
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Definition
southern US great plains > 28'-42' dry, high winds, overgraz, plow up steppe for wheat |
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Term
where are the high great plains |
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Definition
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Term
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Definition
wind driven fine clays and some coarse textures when anchored very fertile |
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Term
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Definition
elevated table land plains, they can be found anywhere |
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Term
how do plateaus get dissected |
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Definition
through differential weathering processes > hills and valleys in humidity |
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Term
what can you find in arid areas |
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Definition
mesas, buttes, and pinnacle forms |
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Term
what is an erosional plain? |
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Definition
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Term
what does desertification relate to? |
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Definition
semi-arid areas that become desert like |
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Term
what can you attribute to desertification |
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Definition
long term droughts and animals leveling vegetation |
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Term
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Definition
Semi-arid area south of the Sahara |
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Term
How long is the earth believed to be in existence? |
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Definition
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Term
What is the Pre-cambrian time? |
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Definition
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The Middle Era, or Mesozoic consists of |
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Definition
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Definition
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Definition
relates to global chilling and the lowering of sea levels |
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Term
Inter-glacial periods were.... |
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Definition
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Term
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Definition
Linear features of glacier debris |
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Term
What percent of earth's water is accounted by glacier? |
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Definition
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Term
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Definition
Gravitation of earth sun and moon |
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