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Sosiale wetenskappe: aardrykskunde

Graad 9

Volhoubare gebruik van hulpbronne

Module 8

Die produksie van afvalstowwe

In Suid-Afrika word jaarliks 42 miljoen kubieke meter afval gegenereer. Die grootste deel van hierdie afval word in Gauteng geproduseer. Die gemiddelde hoeveelheid afval per persoon wat daagliks in Suid-Afrika geproduseer word, is 0,7 kg. Die sektor wat die meeste bydra tot die stroom van soliede afval, is die mynbou. Hierdie sektor dra 72,3% van die soliede afvalstroom by. Daarna volg brandstof wat 6,7% uitmaak van die soliede afvalstroom. Landbouafval dra 6,1% by, terwyl afval uit stedelike gebiede 4,5% uitmaak. Die rioolslyk beslaan 3,6% van die soliede afvalstroom.

Sulke hoë vlakke van afval en besoedeling wek rede tot kommer. ‘n Groot hoeveelheid van die gevaarlike afval (soos chemiese stowwe), word nie behoorlik behandel of van ontslae geraak nie. Slegs 5% van die 5 miljoen kubieke meter chemiese afval wat geproduseer word, bereik uiteindelik die gevaarlike afval-stortingsterreine.

Aktiwiteit 1:

Om maniere van afvalwegdoening te identifiseer

[lu 2.2]

Op jou eie:

  • Bestudeer die onderstaande tabel en identifiseer die veiligste metode wat aangewend kan word om van die afval ontslae te raak. Plaas slegs ‘n x in die regte kolom om jou keuse aan te dui:
TIPE AFVAL STORTINGS-TERREIN SEE SPESIALE AANLEG
Blikke en groenteskille
Rioolslyk
Nywerheidsure en gifstowwe
Ou olie en smeermiddels

Assessering

LU 2
AARDRYKSKUNDIGE KENNIS EN BEGRIP Die leerder is in staat om aardrykskundige en omgewingskennis en -begrip te toon.
Dit is duidelik wanneer die leerder:
2.1 ‘n beredeneerde verduideliking van sommige benaderings tot ontwikkeling verskaf [mense en plekke];
  1. maniere waardeur Wetenskap en Tegnologie ‘n positiewe en negatiewe invloed op ontwikkeling het, identifiseer [mense en hulpbronne].

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.
Faith
While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
which drugs can we use for ulcers
Ummi Reply
omeprazole
Kamara
what
Renee
what is this
Renee
is a drug
Kamara
of anti-ulcer
Kamara
Omeprazole Cimetidine / Tagament For the complicated once ulcer - kit
Patrick
what is the function of lymphatic system
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
Adama
what is anatomy
Oyindarmola Reply
Anatomy is the identification and description of the structures of living things
Kamara
what's the difference between anatomy and physiology
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
what is enzymes all about?
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
yes
Prince
how does the stomach protect itself from the damaging effects of HCl
Wulku Reply
little girl okay how does the stomach protect itself from the damaging effect of HCL
Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
function of digestive system
Ali Reply
function of digestive
Ali
the diagram of the lungs
Adaeze Reply
what is the normal body temperature
Diya Reply
37 degrees selcius
Xolo
37°c
Stephanie
please why 37 degree selcius normal temperature
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
37A c
Wulku
what is anaemia
Diya Reply
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
what is the pH of the vagina
Diya Reply
how does Lysin attack pathogens
Diya
acid
Mary
I information on anatomy position and digestive system and there enzyme
Elisha Reply
anatomy of the female external genitalia
Muhammad Reply
Organ Systems Of The Human Body (Continued) Organ Systems Of The Human Body (Continued)
Theophilus Reply
what's lochia albra
Kizito
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Source:  OpenStax, Aardrykskunde graad 9. OpenStax CNX. Sep 14, 2009 Download for free at http://cnx.org/content/col11054/1.1
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