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Social sciences: geography

Grade 7

Population growth and changes

Module 7

The effects of population growth and changeon the everyday lives of citizens

In the previous learning unit you became acquainted with concepts such as a young population , the ageing of the population , life expectancy , population structures , etc. All of these are linked to the change and growth in any population. Another two concepts which are closely associated with this matter, include urbanisation and population movement – two types of change taking place in South Africa and the rest of the world at this very moment, both of which you should be able to observe quite easily. Population movement is commonly known as migration.

1. Why do people migrate?

Since the beginning of time, mankind had been wanderers, abandoning their home environment in search of places where they hoped to find more favourable living conditions; only in the event of forced removals, they had no choice.

Permanent migration is mainly influenced by the following:

climate : (pleasant temperatures – between 10ºC and 30ºC – and a comfortable humidity factor);

economics: (people move to places where they can earn good money, irrespective of the climate);

political reasons: (government decisions might cause people to move to or from a specific area).

But a further choice remains: city or country life?

Most of you are living in a city or a big town. It is a fact because more than half of our country has become URBANISED . This means that more than 50% of our country’s inhabitants are presently living in big towns or cities.

[These figures are established by means of census surveys.]

Population distribution maps show that people are more attracted to some areas than others. This is also true of our own country. Only since 50 years ago the biggest part of our population was concentrated in and around the cities and big towns. In South Africa the migration from rural to urban areas is still an ongoing process.

Activity 1:

To discuss questions on population density and urbanisation

[lo 1.2]

Study the maps in your atlas that indicate population density distribution in urban areas before you attempt to answer the following questions:
  • Name the area in South Africa where the population is particularly sparse:
  • Which province is the most urbanised?
  • Other relevant questions to be added by teachers and learners:

Activity 2:

To answer questions on migration in small groups

[lo 1.5]

Section A (This section is intended for learners in adjacent desks, or for small groups.)
  • In the South African context , think of reasons why people
a) MIGRATE within the country itself:b) EMIGRATE from our country:c) IMMIGRATE to our country: Section B (In this section the answers of each group are written on the board – all answers given by the first group, followed by any new answers from the other groups.
  • Now have a short class discussion and see if you can agree on the (three to five) most important reasons for interior migration (within the country itself) in South Africa. List them below:

2. Why do so many people prefer to live in cities?

Questions & Answers

Discuss the differences between taste and flavor, including how other sensory inputs contribute to our  perception of flavor.
John Reply
taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.
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While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
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omeprazole
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Omeprazole Cimetidine / Tagament For the complicated once ulcer - kit
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Nency Reply
Not really sure
Eli
to drain extracellular fluid all over the body.
asegid
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include: 1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
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Anatomy is the identification and description of the structures of living things
Kamara
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Oyerinde Reply
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
AI-Robot
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Mohammed Reply
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
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Prince
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Wulku Reply
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Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
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Ali Reply
function of digestive
Ali
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Adaeze Reply
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Diya Reply
37 degrees selcius
Xolo
37°c
Stephanie
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Mark
36.5
Simon
37°c
Iyogho
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature
Stephanie
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Wulku
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Diya Reply
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
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Diya
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Mary
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Organ Systems Of The Human Body (Continued) Organ Systems Of The Human Body (Continued)
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Source:  OpenStax, Geography grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11021/1.1
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