1978-02-10 — Page 21

育教僑華 頁一第張六第 日四初月正年午戊

育教僑華

M & Dale Peaks

1978

【中學會考試題預習專欄

地理(十九)·李婉儀

GEOGRAPHY

Suggested answersîte quest-

ins 32 and 33:

32.

The feature shown on the photograph is a ter found on Tap Mun Is kand. In Hong Kong, ters are common in the granite -areas such as Cheung Chau, Chung Hom Kok and Devil's Peak on Hong Kong Island. Field investigation showe that they may be the result of the sub-surface (rather than sub-aerial) rottening. of granite through the action. of rain-water penetrating along joints into the body of the granitic mass. Granite is a well-joiuted and there- ore seen along joints and results in chemical weathering. Among the chief constituents of granite, biotite weathers the fastest and in doing se produces iron oxide,

Feld-

par is altered into haolin and sericite and quartz

Since becomes sand grains, these processes are mainly. localized along the joints, more or less rounded residual blicks may be resulted be- tween the joints. They are called core-stones'. Even-: tually the overlying weather- ed material and the fine- grained producta of rock- decay are washed away, reveal- ing the core atomes piling up one another, They are kaown as tora. They may be modified by sub-serial wea- thering, but the 'black- pile character remains,

·Surface

well-jointed granite

T

Acidulated water seeps along the joints

Care stones Disintegrated or

weathered materiala.

unweathered granite. Chemical weathering takes place along the joints

fermer surface

The uncensolidated materials has been removed by mans movement and erosion

THE FORMATION OF TORS IN TAP MUN ISLAND (known as V7% to the pichickers,

33.

The tow modern tin mining methods employed in Malaysia

xre:

1) Dredging

WAH KIU YAT PO

This method is extensively practised in areas of alluvial deposita, e.g. in the Klang valley and Kinta Valley. In

this method, a large machine or dredge, driven by electric

power, is found floating on

river or large pond, vaat quantities of tin-bearing

alluvium and gravels are acoop-

led up by a chain, of steel

buckets. Then the alluvium is

conveyed te sorting sheds ør

aluices where the mineral-

bearing material is washed,

sver and over again by strong jeta er water until the heavier tia ere is separated from the gravel and remains hebind. One of the advantages of this technique is that the deposits with tin context as low as 1 can be worked. In Malaysia, over half of the tin are produced is obtained by this. me thod. The ini tial capi tal required for setting up a plant for such operatione is quite lare, this method is there lore mainly employed by a few large mining companies, 2) Hydraulic firavel Pumping

salt is a method which is extensively employed in areas of thick tin ore deposita neur the source of water power.. High pressure monitore direct jets of water against the

fin-bearing gravel, which is then loosened and swept inte a sluice or settling tank- where the heavier tin particles settle to the bottom while the lighter impurities are washed away. Or the tin-bearing material 18 carried through high pressure water pipe into a palong or launder where the heavier tin ore siuks behind a series of obstructions. The tin ore is then shovelled. out of the palong by the minera.

b. The significances of tin

production in the economi development of Malaysia;

Tin mining, on one hand, has encouraged the economic- development of Malaysia in the following ways

The great prefit from tin mining encouraged immigra- tion especially the people from South China, who helped a lot in the early development of kalaysia.

2. Mining centres soon pres- pered into large towns as the industry attracted alss many other professions, Ipob and Kuala Lumpur aerve as very good examples.

3. Since tin mining requires a lot of cheap power, the generation of H.6.P. at Chenderoh Lake in the Perak Valley was developed. It. in tura encourages the industrial development of the country.

4. Tin mining has also led to

the improvement of communi- cation of the country. ilighways and railways are constructed, ports are developed to facilitate the transportation of concen- trated tin ore to smelters, and the exportation of refined ingots to other countries.

5. The improved communication encourages the plantation agriculture such as the plantation of rubber, coconut oil, palu and pine- apples. I

The export of tin accounts for a major earning of - the country. The money can be. used to help the develop- ment of he country in many different ways, auch: as in education, industrial- development and social welfare.

On the other hand, tin mining poses some problems on the economic development of Malaysia.

Tin mining, as many other mining activities, can be - regarded as a 'robber industry for its tailings occupy large areas which may be utilized for better uses, such as agriculture and forestry.

2. Tid, together with rubber,

account for about 80% of its total exporti. It is unsafe for Malaysia te be tes concentrated upon these twe products. As The prices of them fluctuate, the economy of the country also auffer" from it. REVISIONAL QUESTIONS:

Identify the feature

34.

報日僑華

shown by the photograph` and.

explain the occurrence and formation of such feature.

35.

'Japan is one of the major industrial powers in The success of the world. its ïndustrialization is

largely a result of its

skilful manipulation of

technology Justify this katatement.

經濟與公共事務(十八

Government and n-constitution

I. What a constitution is

The constitution of a

state is the system of laws, customs and coïventions which define the composition and powers of the institutions governing the country, and regulate the relations of the various institutions to one another and to the people

A constitution that is written down as a document

or a number of documents

s called a "written constitution.

An unwritten constitution" one Tu which the provis provisions about the structure and powers of the government are not formally set down,

Constitution can be. rigid or flexible. A rigid constitution is one in which changes or amendments can only be made by a special procedure. A flexible constitution is one in which changes can be made by the ordinary law-making procedure. .Documents establishing

Government in Hong Kong

Hong Kong's constitution is written and flexible. The most important documents establishing government in Hong Kong are the Letters Patent, the Royal

Instructions, and the Colonial Regulations. (A)The Letters Patent is a constitutional document laying out the political framework of the Hong Kong Government. It creates the offices of the Governor and Commander-in-Chief. It empowers the Governor to ser up a rivil service, maki Law, dispose of crown land, appoint governornt. officers, judges and justices of peace, and dismiss, suspend, or take disciplinary action against any government officer. It also establishes the Executive Council to advise the Governor on all import- ant policy matters, and the legislative Council to make law.

(B) The Royal Instructions are

the instructions the Queen. gives through, her minister, the Secretary of State for the Colonies, to the Governor of Hong Kong instructing him to set up a legislative and executive council.

(C)Colonial Regulations are

directions to governors for general guidance by the Crown, III.Legislative, executive

and law-keeping functions of the Hong Kong Government (A)The Governor

(i) He represents the Crown

as the real head of the Hong Kong Government. He presides at meetings at the executive Council. He is the president of the Legislative Council, where he is entitled to a casting vote besides the original vote he is allowed as a

日十月二年八七九一瑟公年七十六國民華中

五期星

member. Being responsible

for every act of the

government, he has the authority to appoint government officials, district judges, and magistrates,

(ii) The Governor must seek

the advice of the Executive Council on all important policy matters except: those which are of such immediate urgency as to preclude prior consultation; and where the appointment, disciplinary control or removal from office of a public officer is involved.

It is not a must for the Governor to take the advice

given by the majority of members of the Executive Council. But he is required to report his reasons for not taking the council's advice to the Secretary of State for Foreign and Commonwealth "Affairs in London. In practice, the Governor respects the majority view of the council and rarely ignores the advice of the council.

(iii)In name, the Governor

is the sole lav-maker of Hong Kong. All laws are. enacted by the Governor. with the advice and consent

of the Legislative Council; Laws which have effect

In

within Hong Kong may be made by the British Parliament or by the queen by Order-in-Council. addition, English common laws that apply to Hong Kong are not enacted by the Governor, while British rules of equity may apply to Hong Kong. The Queen has also the power to

disallow laws passed by

the Council and assented

to by the Council and

assented to by the Governor.

to be continued--- 生

物 十九 梁永華

BIOLOGY (19)

Unit 10: organisms and Envi-

I∙lultiple Choice questions;

ronment

7. Which of the following state-

pents about humus is not cor- rect?

A. Humus is formed from the

excretory products of the living organisms and their dead remains

B. Humus improves the aeration

of clay soil

C. Humus helps the sandy soil

to retain water

D. Humus is broken down by

algae into minerals

E. Humas is the food for

earthworm a

2. Am analysis of two soil.

samples A and B gave the following results. Composition

Coarse, medium.

& fine sand

silt

Clay

Humus

Soil A Soil H

28*

52

30%

15%

38%

23%

4%

9%

Refer to the above data, which description about the samples is less likelys

A. Soil A is less fertile B. Soil A contains less

microorganisms

C. Soil B has a greater

amount of soil air

D. Soil B is more alkaline E. Soil B is easily eroded

by wind

3. The size of the particles in

the soil affects

I the aeration of the soil II the rate of drainage of

the soil

III the capillarity of the soil IV the retentivity of the soil A. I,II D. I, II, IIT

B. II,III B. All

.. IIT, IV

4.

I Bacteria.

II Bird

III Hawk

IV Seed

The sequence best shows the energy flow in a food chain is.

The most possible explanation

for the change of the popula-

tion size of the rabbit is that

A. the tigers prey on the

rabbits

B. the hawks prey on the

rabbits

c. the tigers prey on the

hawks

D. the hawks prey on the

tigers

E. the rabbits feed on grass 6. The component which is not

essential in a community is A. green plants

B. solar energy

C. decomposer

D. consumer.

7. any one of the above

7. The following diagram repre-

sents an ecological system

Solar Energy

A. I.II. III.IV D. IV.II.III.I B. II. III.IV.I EIV.III.II.I C. III.II.IV.I...

5. The following graph shows the

changes of propulation size of rabbit, tiger and hawk in a plain.

number of animals

$1

rabbits

tigers

hawks

42 33 34 5 Year

A,B,C,D, are the components

in this system

1.00 and H20

2. inorganic

substances 3. animals 4. green plants 5. microorga- nisms 6. fungi

Which of the following combi nations is correct?

I

IT III LIV

·A.

4

56 12 13

H.

4

3

26**

C. 446 5

3 12

D.

E.

4 15 4

12: 36

.12.

8. The following diagram shows

a nitrogen cycle..

Nitrate

death

Ammonia

Nitroge

liitrate

Which of the following pair-

inge is correct ?

A. 1-producer

B. 2-consumer

C. 3-nitrifying bacteria

D. 4-nitrifying bacteria B. S-nirtifying bacteria

Snake

Toute route 2

Bird Frog

Word

Plant

Insect

Which of the following state- ments about the above food web is not correct?

A. Plant is the producer B. Bird is a consumer

C. More energy is transfered.

to snake through route 1 than 2 if the amount of plant materials is the same D. Worm and insect are con-

sumers

E. A decrease in the popula- tion size of snake causes an increase in the popu- lation size of the insect 10. The infection of tapeworm

can br controlled bý

I discarding the measly pork II through cooking of the pork III proper disprosal of human

faeces

A. I only

B. III only

II and III only

C. I and II only. E. all

11. The place most suitable for the growth of Hucor must be

A. warm, dry and airy ·

B. cold, moist and dark

6. warm, moist and airy

D. warm, dry and dark

E. cold, moist and light

12. Which of the following state-

ents is not true for para- sites?

A. The may be plants and

animals

B. They are always attached

to the hosts

C.They are harmful to the

hosts

D. Their respiration is an

anaerobic one

They cannot buildup complex organic food from simple inorganic compounds

13. Which of the following inects

is a social insect?

A. Butterfly

Mosquito

. housefly

D. Hive bee

E. Cockroach

14. Water for drinking and cook-

ing is treated by means of A. filtration

b. filtration and chlori-

'nation

v. chlorination

D. chlorination and fluo-

rination

. filtration, chlorination

and fluorination

Ang: 10 20 32 4D 5A 6D 7D 8c

9 10 110 120 13D 148