Key Words Geography (Physical) Flashcards
(7 cards)
Active layer
the surface layer that is thawed seasonally in periglacial environments
adaptation
fitting into the natural system and local ways of life, which may involve changing behaviour
aridity index
a measure of aridity - it is the ratio between mean annual precipitation (P) and mean annual potential evapotranspiration (PET)
atmosphere
the air that surrounds the earth
biodiversity
the range of living organisms within a species, between species and in an ecosystem
biome
a large scale ecosystem
block separation
rocks with a clear pattern of joints and bedding plains break apart in the form of blocks