End Of Year Year 8 Exam Flashcards
(17 cards)
What’s population density?
How many people live in an area.
What’s population distributon
Where populations are living
Give some reasons for population growth
High birth rates
Low death rates
Migration
What is the DTM/demographic transition model
A DTM is something that shows how a country’s population changes over time in 5 stages.
Explain stage 1 on the DTM
High birth rate
High death rate
Population grows slowly
Explain stage 2 on the DTM
High birth rate
Death rate falls
Population grows quickly
Explain stage 3 on the DTM
Birth rate begins to fall
Death rate continues to fall
Growth of population slows down
Explain stage 4 of the DTM
Low birth rate
Low death rate
Population is steady
Explain stage 5 on the DTM
Birth rate is very low
Death rate is low
Population may decrease
Whats a population pyramid
Population pyramids are graphs that show the age and gender of a population.
What is the structure of the Gambia
Very young population
More children and teenagers than adults
What are the causes of Gambias youthful population
High birth rate due to lack of supplies to prevent pregnancy
Low life expectancy, people who are older are less expected to live as long as infants.
What are the positive effects of a youthful population in the Gambia
In the future there will be more people who can work and provide
They can help adults who may not be as strong to do things
What are the negative effects of a youthful population in the Gambia
Schools will not have enough space for everyone
Families may go into poverty since they have to provide for many children
What is the name of the outer layer of the earth
The crust
What is the name of the layer below the crust of the earth
Mantle
What is the middle of the earth called (below mantle)
Core
