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Aardrykskunde

Graad 5

Gesondheid en welsyn

Module 35

Siektes en die werkplek

A. Nywerhede en nywerheidsgebiede

Suid-Afrika is ‘n betreklik welvarende land, veral gemeet aan Afrika-standaarde. ‘n Ondersoek na die voorkoms van minerale en grondstowwe afkomstig uit vissery, landbou en bosbou sal aantoon dat dit die oorsprong van ons welvaart is.

Die produkte van die mynbou, en die grondstowwe hierbo genoem, word in fabrieke verwerk om waarde by die primêre produkte te voeg en uiteindelik welvaart vir die land te bewerkstellig. Die talle werkgeleenthede wat in die fabrieke geskep word en die salarisse en lone wat deur die fabriekspersoneel verdien word, veroorsaak dat die rykdom na die mense versprei word.

IS DAAR MEER IN NYWERHEDE AS NET VOORDEEL?

In Suid-Afrika, soos in die meeste lande in Afrika, heers groot werkloosheid. Enige stappe wat gedoen word om werk te skep, word verwelkom. Die Ceres-groep wou in ‘n stadium grond gratis aan ‘n vrugte-inmaakmaatskappy skenk om sodoende werk te skep en produksie te verhoog.

Dit sou egter dom wees om alles in die stryd te werp om grondstowwe te ontgin so vinnig as wat ons kan, en te vergeet van die mens en die omgewing.

In die mens se strewe om geld uit mynbou en nywerhede te maak, doen hy baie dinge reg, maar sommige besluite neem nie die beste belange van die mens en die omgewing in ag nie – ‘n mens hoor en lees gedurig van hofsake wat teen regerings en maatskappye gemaak word om hulle tot verantwoording te roep.

Die lande van Oos-Europa wat vir ongeveer 40 jaar onder beheer van die USSR was voordat hulle in 1990 weer beheer oor hul eie sake oorgeneem het, is ‘n toonbeeld van hoe regerings ‘n land kan verwaarloos. In ‘n stadium het die rook uit die skoorstene van fabrieke soveel skadelike stowwe bevat dat bome daarvan doodgegaan het. Water wat in Europa se grootste rivier, die Ryn, gestort is, het in die vroeë sewentigerjare van die vorige eeu die plante en dierelewe begin vernietig.

AKTIWITEIT 1

OM AFLEIDINGS UIT ‘N GRAFIESE VOORSTELLING TE MAAK

[LU 3.1; 3.3]

  • Bestudeer die skets en verduidelik watter goeie plan gemaak is om waterbesoedeling in hierdie rivier te voorkom:

Wat was die plan wat beraam is?

B. Die invloede van nywerhede

Dit is nie net die natuur wat deur die nywerhede beïnvloed word nie, maar ook die mense wat in die nywerhede werksaam is.

AKTIWITEIT 2

OM PROBLEEMSITUASIES TE IDENTIFISEER EN ONTLEED EN VOORSTELLE TE MAAK VIR DIE VERBETERING DAARVAN

[LU 3.1; 3.3]

  • Bestudeer die koerantberigte en voltooi die vraelys:
  • Berig 1

Asbestoselyer beskuldig unistad van sloerdery

Helen Coetzee

KAAPSTAD - Die unistadsraad sloer, terwyl werknemers by die Athlone-kragsentrale ly weens longkanker en asbestose wat hulle deur die inaseming van asbesvesel opgedoen het.

Uit: Die Burger , 26 Junie 2001

Berig 2

Prieska gis oor wie in grafte by mynhoop lê

PRIESKA - Tussen 200 en 250 ongemerkte grafte is hier op ‘n koppie langs ‘n mynhoop by die Glen Alan-oopgroefmyn gevind, terwyl gemeenskappe hulle gereed gemaak het vir ‘n protesoptog teen die uitwerking van asbes.

Questions & Answers

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
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Sosiale wetenskappe: aardrykskunde graad 5. OpenStax CNX. Sep 22, 2009 Download for free at http://cnx.org/content/col10985/1.2
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