Geography test Flashcards
Birth Rate
The number of births in a country in a year per thousand people
Death Rate
The number of deaths in a country in a year per thousand people
Population distribution
How people are spread around the in a country or area
Population density
The average number of people per square kilometre
Densely populated
Lots of people live there
Sparsely populated
Very few people live there
Fetch
The length of the water the wind blows over, before it meets the coast
Erosion
Wearing away of rock stones and soil by rivers waves the wind or glaciers
Transport
The carrying away of material by rivers waves the wind or glaciers
Deposition
To drop material; waves deposit sand and small stones in sheltered parts of the coast forming beaches
Tides
The rise and fall of sea levels, due to mainly the pull of the moon
Hydraulic action`
Water is forced into cracks in rocks. this brakes them up
Abrasion
Sand and pebbles are flung against rock. this wears away like sand paper on wood
Attrition
Chunks of small rock get knocked together and break into smaller bits
Swash
Waves coming towards the shore
Backwash
The motion of receding waves
Spit
A strip of sand or shingle at sea
Cave
A hole in a rock face caused by erosion
Arch
The curved outline left when the sea erodes the inside of a cave away
Stack
A pillar of rock left standing in the sea when the top of the arch collapses
Beach
An area of sand or small stones, deposited by waves
Bay
A smooth curve of coast between to headlands
Salt marsh
A low lying marshy area by the sea, With salty water from the tides
Shingle
Small pebbles
Long-shore drift
How sand and other material is carried parallel to the shore by the waves
Spring tides
High tides higher, low tides lower
Neap tides
High tides lower, low tides higher
groynes
barriers of wood or stone down a beach, to stop sand being washed away
