Corp Overview 14 Aug2009
Migration Push factor Drive away people Pull factor Attract people Migration chains.
UNIT 3: MIGRATION MIGRATION. Introduction Migration: permanent movement to a new location – cross boundary between states, countries, cities, etc. Emigration:
THE ATMOSPHERE AND AIR POLLUTION. LAYERS OF THE ATMOSPHERE Lower atmosphere – contains 99% of all atmospheric air Troposphere Stratosphere Ionosphere.
UNIT 3: MIGRATION. Introduction Migration: permanent movement to a new location – cross boundary between states, countries, cities, etc. Emigration: migration.
