Die plantegroei van die wêreld is in
vyf groot biome verdeel:
Die Woudbioom
Tropiese woude.
Gematigde woude.
Bladwisselende woude.
Naaldwoude.
Mediterreense woude (Sclerophyll-bosse)
Savannebioom
Grasveldbioom
Woestynbioom
Toendra en ysveldbioom
Onthou!
Op talle plekke op aarde is die oorspronklike omgewing reeds gewysig of vernietig deur die mens.
2. Oppervlakverdeling van verskillende biome
Aktiwiteit 1:
Om ‘n sirkelgrafiek te teken en die biome se omvang daarop voor te stel
[lu 1.5]
Gebruik die tabel as verwysing.
Hoofbiome van die wêreld
Bioom
Oppervlakte(miljoene km2)
Persentasie
Woude
52,3
40,1
Savanne
21,8
16,7
Grasvelde
8,8
6,8
Woestyne
33,8
25,9
Toendra
13,7
10,5
Teken ‘n sirkelgrafiek en dui daarop aan watter deel (segment) van die hele sirkel (360
o ) elke bioom beslaan. Gebruik die persentasie van elke bioom om dit te bepaal. Gebruik ‘n gradeboog om elke bioom as ‘n sektor van die sirkel in te teken.
My sirkelgrafiek van die verskillende biome van die wêreld
Bereken die segment in grade soos volg:
Woude
:
×
= 144,36
o
Savanne
:
Grasvelde
:
Woestyne
:
Toendra en ysvlaktes
:
Watter bioom bedek die grootste oppervlakte?
Watter bioom bedek die kleinste oppervlakte?
DIE WOUDBIOOM
‘n Woud is ‘n groot stuk grond wat natuurlik met bome bedek is. In sekere woude sluit die hoë boomkruine dig teen mekaar aan en verhoed dat die sonstrale tot op die grond kan deurdring. Op ander plekke is die bome wyer uitmekaar en sonlig word gedeeltelik deurgelaat.
Die belangrikste van die soorte woude is die
tropiese reënwoud . Hierdie woude word naby die ewenaar (in die trope) gevind waar dit die hele jaar warm is, met ‘n baie hoë reënval. Die meeste van die soorte bome in die tropiese reënwoude is breëblaar-, immergroen bome. Ons vind ook baie soorte palms en varings hier. Daar woon relatief min mense in tropiese reënwoude, omdat die plantegroei so dig is dat dit moeilik is om in die woude te beweeg.
In die
bladwisselende woude met boomsoorte soos eik, okkerneut, wilg en populier, verloor die bome hul blare gedurende die winterseisoen, terwyl
gematigdeimmergroen woude in gebiede met reën dwarsdeur die jaar byvoorbeeld baie dennebome het wat as gevolg van die feit dat hul dennebolle dra, boldraende (keëldraende) bome genoem word. In hierdie tipe woude vind ons baie verskillende soorte insekte, reptiele, spinnekoppe en voëls. Die bladwisselende en gematigde woude kom voor in gebiede wat van die digsbevolkte in die wêreld is (Noord-Amerika, Europa en Asië). Deur die eeue was mense nog altyd afhanklik van woude vir skuiling, kos, hout vir huise, wapens en energie.
Aktiwiteit 2:
Om die uitwerking van digte bevolking op natuurlike woude te bespreek
[lu 1.1]
Bespreek in julle groepe die uitwerking wat die digte bevolking op die natuurlike woude kan hê en hoe die natuur beskerm kan word. Skryf ‘n kort verslag na aanleiding van jou groep se bevinding.
Naaldwoude kom hoofsaaklik tussen 50°N en 70°N voor en is aangepas om die lang, koue winters en kort somers te oorleef.
Questions & Answers
differentiate between demand and supply
giving examples
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
When MP₁ becomes negative, TP start to decline.
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 •
Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 •
Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Economic growth as an increase in the production and consumption of goods and services within an economy.but
Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
thank you so much 👍 sir
Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has
The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50.
A,Calculate quantities of x and y which maximize utility.
B,Calculate value of Lagrange multiplier.
C,Calculate quantities of X and Y consumed with a given price.
D,alculate optimum level of output .
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
