Geography Yr7 Flashcards
(18 cards)
Is population influenced by birth and death rates?
Population is influenced by
birth rates
and
death rates
What can population changes be shown on?
Demographic Transition Model (DTM).
What is meant by the term natural increase?
Natural increase means that the population is increasing as more babies are being born than people are dying.
Can population be affected by population?
Yes! Population is also affected by migration
How many stages can DTM be split into?
5
At what stage of the Demographic Transition Model are high birth rates but falling death rates likely?
Stage two of the Demographic Transition Model is characterised by high birth rates but falling death rates.
What does a wide base on a population pyramid indicate?
A wide base to the pyramid indicates a young population.
How do countries manage their population?
They may try to increase birth rates, and therefore the population, by encouraging people to have children through
pro-natal policies
Governments sometimes create policies to manage their population.
Which country introduced a one-child policy in the 1970s?
China introduced a one-child policy in the 1970s to try to reduce the countryβs birth rate and slow population growth.
What are coastlines shaped from?
Coastlines are shaped by a number of processes such as erosion, deposition and transportation.
.
How are different types of landforms made?
Different types of landforms are caused due to several influences such as the geology of the coast.
How does wind affect coastlines?
Wind causes waves to be produced in the water. These can cause erosion of the coast. Wind can also cause material to be transported, for example by longshore drift, which is where sediment moves along the coast in a zig-zag pattern in the direction of the prevailing wind before being deposited.
Name the four processes of erosion.
The four processes of erosion are:
hydraulic action/power
abrasion /corrasion
solution
attrition
If a spit connects an island to the mainland (a headland), what landform is formed?
If a spit connects an island to the mainland (a headland), a tombolo is formed.
If the roof of an arch collapses, what landform is formed?
When the roof of an arch collapses a sea stack is formed.
How long is the coastline of Great Britain, including its islands?
The coastline of Great Britain, including islands, is 31,368km long.
Why is protecting the coastlines important?
Protecting the coastlines is important to defend life and property from being destroyed by flooding or erosion.
What is hard engineering?
Hard engineering means using man-made structures to defend the coast.
