Edexcel A-Level Geography -
Glaciation 2024 June Exam
Questions and Answers 100% Pass
Quarternary Ice Age - Answer>>Most recent ice age that
started 2.6 million years ago with two epochs (Pleistocene and
Holocene)
Loch Lomond Stadial - Answer>>Last glacial advance in the UK
12,000-10,000 years ago in Scottish Highlands caused by Gulf
Stream cut off by Lake Agassiz
Little Ice Age - Answer>>Between 1300-1870 when average
temperatures were 1-2C cooler, resulting in glaciers re-advancing
and abandoned settlements in Iceland
Eccentricity Cycle - Answer>>Change in Earth's orbit from
circular to elliptical every 100,000 years
Obliquity Cycle - Answer>>Tilt of Earth's axis varies from 21.5
to 24.5 over 41,000 years, changing season severity
Procession of the Equinoxes - Answer>>Earth's wobble causes
the season in which the the Earth is closest to the Sun to change
every 21,000 years
Albedo Effect - Answer>>The reflection of solar energy from
Earth
Thermohaline Circulation - Answer>>Ocean current circulation
that is driven by differences in temperature and salinity
, Short-term causes of climate change - Answer>>Volcanic
sulphur dioxide emissions intensify Albedo and variation in solar
output
Long-term causes of climate change - Answer>>Plate tectonics
(mountain building = more snow) and Panama Isthmus closure
caused the Gulf Stream that increased snowfall in the Arctic
Cryosphere - Answer>>Cold environment where water is in it's
solid ice form as snow, icebergs, lake and river ice. 11% of ice in
Greenland and 86% Antarctica.
Polar Environment - Answer>>High latitude, very cold and low
precipitation
Alpine Environment - Answer>>High altitude, high precipitation,
varied temperature and rapid glaciers
Cirque or Corrie - Answer>>Armchair-like hollow 0.5-10km2
(Cirque Au Mandit)
Valley Glacier - Answer>>Similar to river that flows down
valleys covering 10s-1000skm2 (Mer de Glace)
Piedmont Glacier - Answer>>Glacier that spreads over 10km
wide when it reaches an open plain (Wye)
Highland Ice Field - Answer>>Smaller than an ice cap that is
confined by the topography (Vallee Blanche)
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