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Sosiale wetenskappe: aardrykskunde

Graad 6

Bevolkingsverspreiding en –digtheid op ‘n wêreldskaal

Module 6

Rio de janeiro – een stad: twee wêrelde

Rio de Janeiro – een stad: Twee wêrelde

Let op : Een van die 22 federale state van Brasilië heet ook Rio de Janeiro, maar in hierdie leereenheid ondersoek ons die stad Rio de Janeiro wat tot 1960 die hoofstad van Brasilië was. Die hawestad Rio de Janeiro, in die Baai van Guanabara, is die belangrikste ekonomiese en finansiële sentrum van die land.

Aktiwiteit 1:

Om uit verskillende bronne navorsing oor die stad rio de janeiro te doen

[lu 1.2, 1.5]

1. Wat beteken die naam?

2. Hoe het die naam ontstaan?

3. Die taal wat die meeste inwoners praat:

4. Breedte- en lengteligging:

5. Klimaatstipe in die omgewing van die stad:

6. Getal inwoners:

1. Vinnige groei veroorsaak groot probleme

  • In 1969 was die bevolking van Rio de Janeiro 4 miljoen – in die daaropvolgende 30 jaar het die bevolking tot ongeveer 12 miljoen aangegroei! Op enige plek op aarde wat so vinnig groei, sal daar probleme ontstaan.
  • Brasilië is nie so ‘n ryk land dat huise aan almal verskaf kan word wat van die platteland af stad toe trek nie! En as die nuwe intrekkers juis op soek is na ‘n beter lewe in Rio de Janeiro, is dit vanselfsprekend dat hulle self ook nie geld het om ‘n konvensionele huis te laat bou nie! Maar veel meer as die huis is nodig: water moet aangelê en elektrisiteit moet verskaf word. En wat van riolering en vervoer? En soos in soveel ander lande en stede in die ontwikkelende wêreld, word probleme vererger deurdat werkgeleenthede baie stadiger toeneem as wat die bevolking aangroei. Grootskaalse informele behuising (plakkery) is dus Rio de Janeiro se voorland.
  • Weens die gebrek aan openbare vervoer het die informele huise, soos in ander stede ook, so na as moontlik aan die middestad en nywerheidsgebiede opgespring.
  • Sowat ‘n kwart van Rio de Janeiro se inwoners woon in informele buurte, favelas genoem. Die favelas word gekenmerk deur swak beplanning (soms geen beplanning) ongesonde lewensomstandighede en misdaad. In hierdie stad is die kontras tussen die lewensomstandighede van die rykes en die armes dalk ook meer opvallend as in ander stede met ‘n buitengewoon vinnige groei. In een stadsdeel woon die ryk mense op groot erwe in groot huise. Hier woon 5 % van die inwoners op 25 % van die stadsgebied.

Maar hoekom die vinnige toestroming na Rio?

In die laaste jare van die vorige eeu was daar wêreldwyd ‘n toestroming van die afgeleë platteland na stedelike gebiede – mense vind die geriewe en vermaak van die stedelike leefwyse onweerstaanbaar! Baie mense is ook oortuig daarvan dat hulle alleen in stedelike gebiede beter geleenthede vir hul kinders se toekoms kan verseker. In Brasilië is dié neiging ook nog aangehelp deur droogtes en probleme in die landbousektor in die binneland.

Werkgeleenthede in Rio word onder meer verskaf deur voedselfabrieke, vervaardigers van tekstielware, elektroniese toerusting en farmaseutiese produkte, sowel as olieraffinaderye.

Die wêreldwye verskynsel van ‘n vinnig groeiende toerismebedryf word ook in Rio de Janeiro ondervind – die stad se strande en omliggende natuurskoon lok mense van oor die hele wêreld. Ongelukkig groei die werkgeleenthede in die nywerhede en toerismebedryf aansienlik stadiger as die bevolking! Die gevolge is voorspelbaar.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Aardrykskunde graad 6. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col10999/1.1
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