1982-03-30 — Page 22

are labour intensive.

郭日僑業

poorer management and

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They absorb a lot of

中學會考試題預習專欄

地

1982

理

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Geography (25)

Y. Y. Lee

MILE & DALE PRESS: LTD.

49. The trade of W.

Malaysia, ng shown by the below diagrams, consists largely of rubber and tin, It is said that it is

unfortunate that W. Malaysia has

concentrated solely upon these

twb

products. From the data below which

show the exports and needs of W. Malaysia, SAY

How the two products have helped the development of the country.

Explain why it is unfortunate to rely salely on two

products and suggest some ways for solution..

Exports limber 137

3.5%%

palm

oil

3.5%%%

Iron

Imports

others

Tin

26%

Rubber

Others

"Food" 28%

Machinery

21%

16%

Textiles

Suggested Answers:

8. Good Effect of Tin

Mining and Rubber Plantation on W. Malaysia:

Tin mining and rubber plantation have helped the developmen of W. Nalaysia in the following ways: (1) Increase of Popula- tion and Establish- ment of Towna

The two activities are profitable, especially tin mining, and have, therefore,

encouraged immi gra- tion to the country. Towns are set up, such as Ipoh and

Kuala Lumpur,

of

which the develop- ments are partly: owed to the two: activities.

(2) Increase of Employ ment Opportunities

The two activities

labour ive, provide

a lot of employment opportunities for

the people.

(3) Development of (ther

Industries

Since tin mining needs a lot of cheap electricity, it has encouraged the establishment of

HE.P. stations, which has in turn, encouraged the development of many other industries. (4) Improvement of

Transportation

To facilitate the export of the products of the two.

activities, roads and railways are constructed, ports are developed, e.g. the development of Port Swettenham and Georgetown. Aga

(5) Balance of the Trade.

The export of tín and products forms

largest

source of income of the country". They can balance the trade. The income can be used to buy things that the country lacks, such ag food, as she still has to import a lot of food from other countries. Money is also aceded to buy raw materials

oil and machinery for the development of industry. (6) Improvement of

Infrastructure and

Social Welfare

The money are also used to develop the country in many, other different ways, such as

construction of

schools, hospitals, promotion of social welfare, improvement

of irrigation scheme, etc.

Difficulties

It is unsafe for the country to rely solely on these two products since the prices, especially in recent fluctuate and years, mostly fall consider- ably. It is mainly due to the fluctuation of the world's demand of the two producta as affected by the keener competition from other industries. For tin, there is the

competition from other metals and plastics. For rubber, there is competition from synthetic rubber, Furthermore, quality. of the two products deteriorate. Many of the old mines are exhausted and many of the large-rubber plantation split into

smaller holdings, with

less efficient work,

Solution

The problems.

solved by

be

tion. A ficá-

cation

of crops is preferr- able on the large rubber plantations, e.g. the growth of food crops. Diversifi- cation of industry should be encouraged by the government. Uther types of industries can be. developed, based on her home production of fron and H.E.P. To promote the production of the two activities. and reduce the cost of production, more efficient methods should be adopted and new markets should be opened.

The

diagram below slows a modified landuse plan of an urban area.

Examine the factors

determin-

ing the location. of industrial areas of this region. Briefly describe the environmenta: problems arising from it.

Thermal Plant

-100-Contour (V.T. $10km).

Railway

District (C.B. DAY! Central Business:

Clase Residential Lower, & Middle.

Redidential High Class

Iaduatrial Area

6. Buildings

•VABAN LANDUSE

SEA

Suggested Answers:

Factors Determining tlie Location.

મ

The location of the industrial areas in this region is mainly

determined by the follow- ing favourable factors: 1. Availability of Flat

Land

The industrial areas are found on the coastal region where a larger piece of flat ∙land is available. This piece land is apart from the C.B.D., so land rent is

cheaper.

二期星

2. Easy Transportști on

日十三月三年二八九一公車- 十七國民華中 節樂音教

The industrial areas are found along the coast and are served by a good harbour which is sheltered by. highlands on all siders and is well facilitated with piers. Sucli a

location hastal

strong

pull for industries since transport cost of hulky raw materiala by gen is cheaper. The region is also linked with the airport by railway. * ME

3. Accessibility to C.B.D

Good communication network including

railways and waterway provides easy access to C.B.D., so the finished products can be brought to the market efficiently. Besides, easy access to C.B.D. also means that services like banking., commerce and insurance can be provided easily. Availability of Pover Resources

There is a thermal plant nearby, which supplies electricity to factorise. The oil tank is another

source of energy. Availability of Labour:

are

The industrial areas e close to the residential areas of Tower and middle classes, Where density

of population is. higher and people are mostly of working.. class, forming an adequate labour supply.

Environmeïtal Problems

Various environ- mental problems aris- ing from such insustrial areas are unavoidable. Air pollution is the main one Winds may carry the polluted air to: the residential areas, causing damage to "plants and houses and affecting the health of people. The waste from factories causes water pollution. The high concentration of

people leads to noise

pollution. Traffic

congestion is

unavoidably caused,

生物 (廿五)

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Biology (25).

W. W. Leung

MILL & DALE PRESS LTD.

Revision

3. The following diagram

shows a general plan of blood circulation

in mammals.

Liliver

I intestine Ke kindney

a) Explain why the bl

in the circuit (1) can flow

constantly.

(2) can flow forward

without back-flow; (1) Name Lue chamber

(2) When chamber X

contracts, to which organ is the blood in it Explain why

secretzWIT

(3) Under what

157

conditions in it.

secreted?

d) (1) Name the organ

that leads to. (2) What is the

function of this organ?.

Answers:

The rhythmic pumping action of the heart keeps the blood in the wireùit to flow constantly. (2) The blood in the

theircuit can flow forward because

the pumping action of heart seta up ɛ blood pressure which forces the blood to flow forward, and there are valves, the heart and veing to prevent the blackflow of blondli

wall of che (1) Right ventricle.

Y:

is thicker than that of chamber X, What are differences

in the composition of the blood in

(1) chamber X and Y. (2) blood vessel A and

B.

(3) blood vessel C and

D

d) (1) Name the blood

vessel A and state its function. (2) What is the

feature of portal vessels?

Name two hormones. which speed up the

circulation...

The follow

diagram

shows the mternal structure of the kidney of a mammal and its associated.

structures.

(1) Name thể

structures A and

B..

(2) Describe the

physiological

activities carried

out at A and B.

(1) Name the blood

vessels C and D

(2) What are the main

differences in composition of blood between C and Da

Does contribute. to the excretory function of the

kidney? Explain it (2) What is the

(2) The lung. (3) It is because the wall of chamber Y has to pump blood to distance organa from tire

(1) X

deoxygenated

blood

Y: oxygenated blood: (2) A rich in uutrients Bs rich in urea,

oxygenated binod, rich in urėä,

(3) C.

D deoxygenated

blood, with little uren

(1) Hepatic portal vein.

It transports the digested, products from the intestine to the liver

(2) They are vessels with capillaries both ends

e) Adrenaline and

thyroxine.

(1) A: cortex

B: medulla

(2) A: Ultrafiltration

and reabsorption

b)

B: reabsorption

C renal artery D: renal vein. (2) The blood in C

contains more nutrients, oxygen

"and nitrogenous

wastes tham that... ïn

D

E is an endocrine

gland and does not contribute to the excretory function of the kidney, (2) Adrenalin (3) Adrenalin is

secreted when the organisms requires large of amount of! energy suddenly, example daning flight or fight.

(1) Urinary bladder (2) For the temporary

storage of urine

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