global population and migration Flashcards
1
Q
what is demography
A
the study of population and demographic trends using statistics
2
Q
- what is distribution
- is our golabal distribution even of uneven
A
- patterns of where people live
- global distribution is uneven
3
Q
what is a diaspora
A
large group of people who share cultural and regional origin and are living away from their country of origin.
4
Q
when did the world reach its first billion
A
1804
5
Q
- when did the world hit its 2 billion
- 3 billion
A
- 1930
- 1960
6
Q
how does the population increase progressively
A
increases by 1 billion every decade
7
Q
why was there exceptional population growth after 1800
A
industrial revolution
8
Q
what are the main causes of population increase (3)
A
- advances in medicine
- sanitation
- food production
9
Q
- how many years did it take of human history for the golabal population to reach 1 billion
- 7 billion
A
- 200,000+ years
- 200 years
10
Q
how is rapid growth represented on a pyramid
A
upwards triangle, more younger people, less older people
11
Q
how is slow growth represented on a pyramid
A
more middle-aged people, many young people, little old people (rectangle shape)
12
Q
how is negative growth represented on a pyramid
A
- more older people than younger people (downwards triangle)
13
Q
A
