geography revision no.3

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  • Created by: carla_300
  • Created on: 07-03-15 15:22
What does LEDC stand for?
Lower economically developed country.
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What does MEDC stand for?
More economically developed country.
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What does 'birth rate' mean?
It means the number of babies born per thousand per year.
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What number is a high birth rate per thousand?
30.
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What number is a low birth rare per thousand?
20.
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Give 2 reasons for high birth rate.
1) Children provide labour on farms and can help raise a family. 2) Children are seen as a sign of power.
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Give a reason for low birth rate.
A high cost of living means its expensive to raise a child.
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In what year did the population reach one billion?
1850.
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What is a population explosion?
It means a rapid increase in the population.
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Why are people living longer?
Because they have good medication, clean water and in LEDCs the population is increasing cause the parents can work on farms.
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What does a population pyramid show?
They show the structure of a population.
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What shape is a LEDC population pyramid?
Its a squat triangle shape.
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What shape is a MEDC population pyramid?
Its a spinning top shape.
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Give an example of a LEDC.
Kenya.
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Give an example of a MEDC.
The UK.
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True or False? Is there a High birth rate in North India?
Ture.
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True or False? Is there a Low birth rate in South India?
True.
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What are the 3 river chanel processes?
Erosion, Transportation and Deposition.
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What are the 4 different types of Erosion?
Attrition, Corrosion, Abrasion and Hydraulic action.
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In what order will the river deposit these particles: Small stones, silt, sand and pebbles.
Small stones, pebbles, sand and then silt.
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How are V-shaped valleys carved?
They are carved by glaciers due to the ice age around 10,000 years ago.
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How is a meander formed?
The river erodes the outside bank of the river and undercuts forming a river cliff. This causes deposition to take place forming a river beach.
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Give an example of how a river changes in the upper course.
Waterfall.
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Give an example of how a river changes in the middle course.
Meander.
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Give and example of how a river changes in the lower course.
Flood plain.
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Give 2 examples of Physical causes of flooding.
1) Steep valley sides. 2) Impermeable rocks.
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Give 2 examples of Human causes of flooding.
1) Deforestation. 2) Bridges.
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What did we do to increase water velocity in Boscastle?
The banks of the river were raised and the bridge over river Jordan was raised to prevent debris blocking the channel.
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Card 2

Front

What does MEDC stand for?

Back

More economically developed country.

Card 3

Front

What does 'birth rate' mean?

Back

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Card 4

Front

What number is a high birth rate per thousand?

Back

Preview of the front of card 4

Card 5

Front

What number is a low birth rare per thousand?

Back

Preview of the front of card 5
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