頁二第張八第日八十月五年申庚展夏
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CLUB
WAH KIU YAT PO
郭日僑華
HESE
GURUT BENSESHOE & NUMBER 芝加哥受訓,將在該地參加國際獾子會。
文倫,日昨下班機飛尅「萬人 紐肏三〇三區折總監余獅子會員參加預料有过 (RE) ZUG KHOAITKEN
參加國際獅子大會 三〇三區新總監余文倫
染歛榮授代表團心行色的
事務,至於實愛就職 總監潘光融,總幹事》 報告有開 HICOLE區發展 恩任指押,團員有的 余空榆覺出討論,同時 巡行緒指揮,青山花遜 大韓銀程及建設由任領隊,香屌真岛榮任
啦有價榮态
*EBRIS (NO)ERIKKA - BER : 三做代表團參加世界獅子大會,總監
會談及行日期,全世
識之第六十三次世界大一上海璐會設安 小由七月二日至五日 出發 ̇致詞勗勉。(天 榔,闰年分園地區舉行。監梁榮主持授旗
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REFER (14
-期星
26日十三月六年〇八九一圈公年九十六國民華中 育教聞港
耳際賽學
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牛興趣與潛質,收預予推她不能餘力。各遴選 **EOLE ARE EXISTENIE « 〇三區分所辦全港辯才之烈憚,近年來本 博士,讚典由民政箸及政治,公平法律,有賴 大學中文綮講師陳燦|門四今日社會民主 日舉行琬育,香港行,被事文學號爲孔 (特)湖岛筠于三不朽,曾梧亦與總
辦青年學藝比賽 培養靑少年德智
「陳耀南博士贊揚
本港新聞
由會長做质商報告 ,九月份將與台北獅王
越斐然,足球學界青年 HUS EZOTE 對辯論在語文敎育,民
MARCEL BEEIS NGOA PA
DETHIEHCHS ESTE C# Y%
學藝比賽有國學常識比一般餘之訴,許遍 後裤顉問題有重要性,學藝比賽,每年辦,
·賽辯論比售,是在人,此爲q寫現象。靑生
1980
中學會考試題預習專欄
地理科建議參考資料
明德出版社提供
Suggested Answers to Geography
(a) The feature is a river delta.
Ariver delta is a triangular- shaped alluvial fan formed at the river mouth where the water is shallow. It is crossed by distributaries. with natural levee along the banks and enclosed by
sandbars and lagoons at its seaward edge.
When the river enters the sea, its speed is checked. The sediment brought down is deposited at its mouth and deposition is accelerated by flocculation. The vegetation like mangrove also helps its formation by arresting the sediments.
Most deltas are formed in calm seas or in the bay where the deposition is more quickly than the removal of sediment by longshore drifts,, tides or ocean currents.
As the gradient in the delta is very gentle, the main channel of the river will be silted up so the river.......... overflows its banks to form many streams known as distributaries.
..
(c) If the sea level were to rise
by 50 metres, a ris may be produced. With this kind of coast, the coastline will become more indented as the valleys of the trputaries will form small intes. Many short mountain/streams will form because he rivers are dismembered The coastal slopes are seep in general,
with little or no flat land." The isolated hills become islands, while spurs may form pensulas or healands. In general, the hills and river elleys meet the coast ne more or less at right angles, a kind of discordant coast. The coast will be, at its youthful stage.
2.
(a) 2A is frontal rain.
2B is convectional rain.
(b) Characteristics and
formation of frontal rain.
Frontal rain is usually associated with temperate: depressions. This type of rain usually occurs along fronts. It may last for several hours or a few days. This type of rain is associated with altostratus clouds. It intensity varies from light rains to thunderstorms.
When the warm moist air from the tropical region meets the cold dry air from polar region, a front is
formed. heavier.
The cold air is.
Therefore it.
3
remains close to the ground
The warm air is forced up over the cold air. It is cooled by its own expansion in rising. Further cooling
raises the relative humidity.
until dew point is reached.
Condensation takes place
and rain falls.
Characteristic
and
formation of convection
rain.
This
Convection rain is especially characteristics. of tropical latitudes. type of rain is usually torrential and frequently. accompanied by thunderstorms. In equational regions, it occurs in early afternoon.
$
It is caused when the air over a hot surface is heated up: It expands and becomes lighter than the surrounding air. It therefore rises. In rising, it is cooled. Its temperature is reduced until saturation point is reached. Condensation then takes place and cumulo-nimbus clouds form. As warm air. can hold vast quantities of moisture, If gives rise to short, very heavy rain showers.
(a) Formation of inountai
ranges
These mountain ranges are formed by folding. It occurs in areas of instability.
Formation of fold mountains
(1) Sediments were brought
by erosional agents e. g. wind, waves, rivers etc. from the contineat and accumulated in a vast basin called geosyncline.
ansported by
sediments.
(2) More sediments are
accumulated.
The geosyncline sinks because of the weight the. sediment. Great compressional forces forced the old land
masses to move towards each other.
winking
sediments
(3) The rock strata were
bended forming fold
Compressio
mountains and this may be accompanied by igneous
ctivi
g. Rocky
(a) Feature A is a stack
Feature B is a sea cave Feature C is an arch
(b) Order of development is
sea cave, arch and: stock,
(c) Process responsible for the
order of development
adland
(1) Waves erosion.
line of
weakness. e.g. fault.
tack
concentrates upon a headland as it is exposed: to strong winds.
Wave erosion concentrates. along lines of weakness eg a fault on both sides of the headland by eorrasion and hydraulic action. Caves develop at: the base of the cliff.
(2) caves gradually extends
backwards. The caves may join to forma corridor under the cliff forming an archway
wave at k
(3) With prolonged erosion,
the roof of the archway collapses a rocky stack is. left behind..
headland
(a) Figure 5A is rubber
plantation
Figure 5B is shifting cultivation:
Plantation Agriclture and Shifting Cultivation
SHIFTING CULTIVATION
(1) primitve economy (2) It is practised by natives (3) Fields are small
(4) Small capital
(5) It is found in mountains (6) A great variety of crops is
grown including both tree crops and food crops e..g. rice, banana, malze
(7) Primitive methods are used (8) Primitive tools e. g. sticks. (9) Trees are cut and burnt and
ash is used as a fertilizer (10)Farmers themselves do the
work. No workers are employed
(11) Low productivity (12)Crops are used self-
consumption
(13)It contributes little to
national income. (14) Fields are temporary and
will be abandoned when the soil becomes exhausted
PLANTATION AGRICULTURE
(1) advanced economy (2) It is introduced by the
Europeans
(3) Fields are large (4) Large capital
(5) It is carried out on
cleared areas on undulating plain
(6) A single crop is grown.
usually raw materiał for industry e. g. rubber, oil palm
(7) scientific methods are used (8) machines may be used (9) chemical fertilizers are
used.
(10)Workers are employed (11)High productivity (12)Crops are for export (13) It forms a major source of national income of many S.E. Asian countries e.g. rubber in W Malaysia (14) Fields are permanent
(c) Problems resulting from
shifting cultivation:
As shifting cultivation is a primitive farming method it can only support a low population density with no surplas for sale. When the farmers clear the forest, valuable trees will be destroyed. Also when they burn the trees, a hill fire may be caused. After two or three years, the soil is exhausted and the yield becomes less and less.
As an agricultural practice shifting cultivation causes soil erosion especially when abandoned plots on deforested hill tops are exposed to heavy rainfall causing soil erosion. This may also cause silting of rivers in valleys and increases the likelihood of flooding in the lower river basin.
6.
(b) Differences between
(a) The problems in the
exploitation of the forest in
area X:
Much of Indonesia is
covered by dense tropical forest. It is very difficult to exploit the timber in Indonesia because the trees. are usually of mixed stands, making it difficult for selection, Hardwood timber is hard to work. The thick undergrowth, the dense growth of climbers and poor communiations make these forests difficult to penetrate. The hardwood with its ⠀⠀ spreading branches is difficult to fell, ... The heaviness of the logs makes It difficult to transport. This difficulty is aggravated by the swampy land surface. When compared with other developed countries, the hot and humid climate of Indonesia is unattractive to. workers.
Since population is sparse and diseases and wild animals are widespread in this region little labour is available. Moreover, in this primitive area, due to the lack of capital, only very low technology and poor techniques are employed. Systematic development of this area is late because of political instability.
(b) Reasons why lumbering
well-developed in area Y
Lumbering is highly developed there since it is mainly temperate coniferous forest. The trees are tall,
straight. I Therefore, they can be felled easily & they provide a high volume of usable wood. These trees. are mainly introduced from other countries eg radiata pine
They grow
ell in the Volcanic Plateau of North Island. The main advantage of Radiata Pine is that it matures quickly. The world demand for softwood is great, too. It has versatile usages, i.e. ideal for. furniture,
for construction;
pulp and paper. It is easily treated physically and chemically;
In the volcanic plateau there are hot springs, the steam from some of which has been used to generate thermal power. H. E. P. is readily available from the H. E. P. plants on the rivers - Skilled workers are. available. Because of the mild climate, cutting of trees is allowed throughout the year. In New Zealand the forest industry has been encouraged by the government which has carried out a lot of research work.
(TO BE CONTINUED).
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