Grade 10 Term 3,4 Flashcards
What is birth rate?
The number of live babies born per thousand of the population per year
What is death rate?
The number deaths per thousand of the population per year.
What is natural increase?
When the birth rate is higher than the death rate.
What is natural decrease?
When the death rate is higher than the birth rate.
Name 2 examples of population policies.
Immigration laws
Birth control programmes
What is distribution?
The location of people across the world (where they live)
What is density?
The number of people living in an area (per kilometre squared)
What is a choropleth map?
A map that uses shades of colour to show population density
What is fertility rate?
The average number of children that a woman has during her lifetime.
What is infant mortality rate?
The number of children who die before reaching the age of one in a year, per thousand live births in the same year.
What is life expectancy?
The number of years that a person is expected to live.
What are migrant labourers?
People who move to another area temporarily (to find jobs or for political reasons)
What are refugees?
People who migrate temporarily or permanently to escape danger
What is xenophobia?
The fear or hatred of foreigners
What does HIV stand for?
Human Immunodeficiency Virus
What does aids stand for?
Acquired immune deficiency syndrome
What is an epidemic?
When many people suffer from a disease at the same time in a region
What is a pandemic?
When many people suffer from a disease at the same time across countries or the world
Name at least three countries in the Southern Africa development community
Angola, Botswana, Lesotho, Malawi, Mauritius, Mozambique, South Africa, Swaziland, Tanzania, Zambia, Zimbabwe
Name for ways in which HIV/AIDS affects social and economic status in South Africa
Destabilisation of families, health facilities struggle, production of goods, economy of the country
What are the five causes of ocean currents?
Wend, temperature, gravity, Coriolis force, salinity
What is Coriolis force?
The earth’s rotation causes the winds and ocean currents to be deflected and makes ocean currents form gyres/circles
What is upwelling?
When the wind causes the surface water to move, water from below the surface takes its place
What is downwelling?
When wend causes the surface water to move, the surface water will move downwards
What is this?
🛥
🌫🐟🐠🐬🐳
Bottom trawling
What is a quota?
The amount of fish you are allowed to catch
What are three solutions to overfishing?
Safe catch limits, controls on bycatch, monitoring and enforcement
What is desalination?
To remove the salt from seawater to make fresh drinking water.
What are the two desalination methods?
The boiling process and reverse osmosis
What is lag time?
The gap of time when the greatest amount of rainfall falls and when the most water flows through the river.
