Grade 10 Term 3,4

Question 1

What is birth rate?

Answer 1

The number of live babies born per thousand of the population per year

Question 2

What is death rate?

Answer 2

The number deaths per thousand of the population per year.

Question 3

What is natural increase?

Answer 3

When the birth rate is higher than the death rate.

Question 4

What is natural decrease?

Answer 4

When the death rate is higher than the birth rate.

Question 5

Name 2 examples of population policies.

Answer 5

Immigration laws

Birth control programmes

Question 6

What is distribution?

Answer 6

The location of people across the world (where they live)

Question 7

What is density?

Answer 7

The number of people living in an area (per kilometre squared)

Question 8

What is a choropleth map?

Answer 8

A map that uses shades of colour to show population density

Question 9

What is fertility rate?

Answer 9

The average number of children that a woman has during her lifetime.

Question 10

What is infant mortality rate?

Answer 10

The number of children who die before reaching the age of one in a year, per thousand live births in the same year.

Question 11

What is life expectancy?

Answer 11

The number of years that a person is expected to live.

Question 12

What are migrant labourers?

Answer 12

People who move to another area temporarily (to find jobs or for political reasons)

Question 13

What are refugees?

Answer 13

People who migrate temporarily or permanently to escape danger

Question 14

What is xenophobia?

Answer 14

The fear or hatred of foreigners

Question 15

What does HIV stand for?

Answer 15

Human Immunodeficiency Virus

Question 16

What does aids stand for?

Answer 16

Acquired immune deficiency syndrome

Question 17

What is an epidemic?

Answer 17

When many people suffer from a disease at the same time in a region

Question 18

What is a pandemic?

Answer 18

When many people suffer from a disease at the same time across countries or the world

Question 19

Name at least three countries in the Southern Africa development community

Answer 19

Angola, Botswana, Lesotho, Malawi, Mauritius, Mozambique, South Africa, Swaziland, Tanzania, Zambia, Zimbabwe

Question 20

Name for ways in which HIV/AIDS affects social and economic status in South Africa

Answer 20

Destabilisation of families, health facilities struggle, production of goods, economy of the country

Question 21

What are the five causes of ocean currents?

Answer 21

Wend, temperature, gravity, Coriolis force, salinity

Question 22

What is Coriolis force?

Answer 22

The earth’s rotation causes the winds and ocean currents to be deflected and makes ocean currents form gyres/circles

Question 23

What is upwelling?

Answer 23

When the wind causes the surface water to move, water from below the surface takes its place

Question 24

What is downwelling?

Answer 24

When wend causes the surface water to move, the surface water will move downwards

Question 25

What is this?
🛥
🌫🐟🐠🐬🐳

Answer 25

Bottom trawling

Question 26

What is a quota?

Answer 26

The amount of fish you are allowed to catch

Question 27

What are three solutions to overfishing?

Answer 27

Safe catch limits, controls on bycatch, monitoring and enforcement

Question 28

What is desalination?

Answer 28

To remove the salt from seawater to make fresh drinking water.

Question 29

What are the two desalination methods?

Answer 29

The boiling process and reverse osmosis

Question 30

What is lag time?

Answer 30

The gap of time when the greatest amount of rainfall falls and when the most water flows through the river.