chapter 9-question

8/8/2019 CHAPTER 9-Question

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SPM EXAMINATION QUESTIONS FOR CHAPTER 9: ENDANGERED ECOSYSTEM

PAPER 1: Multiple choice questions

Instruction: All questions are followed by four options. A, B, C and D. Choose the best option for each question. Answer all question.

Arahan: Semua soalan diikuti oleh empat jawapan iaitu A, B, C dan D. Pilih jawapan terbaik bagi setiap soalan. Jawab semua soalan.

1. What is µBiochemical Oxygen Demand¶ (BOD)?

Apakah µkeperluan oksigen biokimia¶ (BOD)?

A The quantity of oxygen produced by an aquatic organism

K uantiti oksigen yang dibebaskan oleh organism akuatik

B The quantity of oxygen used by an aquatic organism.

K uantiti oksigen yang digunakan oleh organism akuatik

C Indicator to measure the level of water pollution

Penunjuk untuk mengukur tahap pencemaran air

D Indicator of the amount of water pollutant

Penunjuk jumlah bahan pencemar dalam air.

2. The following information is about eutrophication.Maklumat berikut adalah tentang proses eurofikasi

A S P Q R

B P SRQ

C SQRP

D QSP

SPM 2005

P - Algae grow and cover the surface of the lake

Alga tumbuh dan menutupi permukaan tasik

Q - The rate of bacteria reproduction increase

K adar pembiakan bakteria meningkat

R - BOD value increases

Nilai BOD meningkat

S - Organic fertilizer flows into the lake

Bajaorganik mengalir ke dalam tasik

SPM 2005



3. The following information shows steps in the reaction during the destruction of the ozone

layer.

P- Chlorine atom reacts with ozone to produce chlorine monoxide and oxygen molecules

Q- Free oxygen atom will break the chlorine monoxide bond

R- Ultraviolet rays breaks the chlorine chemical bond in CFC to produce free chlorine atomS- Free chlorine atom repeats the chains reaction

A P,R,Q,S

B Q,P,R,S

C R,P,Q,S

D R,Q,P,S

4. Table 2 shows the result of an experiment to compare qualities of water from two areas R

and S

Which of the following statements explain the result of the experiment?

I Water sample from area R is more polluted than area S

II Water sample from area R has lower B.O.D value than area S

III Water sample from area R has fewer microorganisms than area S

V Water sample with higher B.O.D value cause the decolourisation of methylene blue

A I and III

B II and III

C II and IV

D III and IV

Water sample Time taken for methyl/ minutesne blue tobe decolourised

Area R 45 Area S 22

SPM 2006

SPM 2006



5. Which of the following cause eutrophication?

Antara yang berikut yang manakah menyebabkan eutrofikasi?

A Pesticide C Fertiliser pestisid Baja

B Herbicide D Carbon dioxide

H erbisid K arbon dioksida

6. Diagram 22 below shows equipment that can cause the thinning of the ozone layer.

Diagram 22

How can this problem be solved?

I Stop using chlorofluorocarbon

II Replace CFCs with HCFCs

III Patching holes in the ozone layer

IV Produce less electrical goods

A I and II

B II and IV

C I, II and III

D I, II, III and IV

SPM 2007



7. The Figure 17 shows an activity.R ajah 17 menunjukkan satu aktiviti.

Diagram 17 R ajah 17

Which of the following are the effects of the activity? Antara berikut yang manakah merupakan kesan aktiviti itu?

I Flash flood

Banjir kilat

II Landslide

Tanah runtuh

III Global warming

Pemanasan global

IV Thinning of the ozone layer

Penipisan lapisan ozon

A I, II and III onlyI, II dan III sahaja

B I, II and IV onlyI, II dan IV sahaja

C II, III and IV onlyII, III dan IV sahaja

D I,II,III and IVI,II,III dan IV



8. Which of the following can be used as an alternative source to replace nonrenewableenergy sources?

Antara berikut, yang manakah boleh digunakan sebagai sumber alternatif bagi menggantikan sumber tenaga yang tidak boleh diperbaharui ?

A Coal Arang batu

B Fossil fuelsBahan api fosil

C Wind energyTenaga Ombak

D OilMinyak

9.

Which term is correct to describe the phenomenon? Antara istilah berikut, yang manakah menerangkan tentang fenomena tersebut?

A Greenhouse EffectK esan R umah H ijau

C Climate changePerubahan cuaca

B Thermal PollutionPencemaran terma

D Global warmingPemanasan globali

Heat is trapped in the atmosphere,

the Earth¶s average temperature rises.

H aba terperangkap di atmosfera,

Purata suhu bumi meningkat.



10. Which of the following is the correct sequence representing the stages in ozone depletion.

Antara berikut yang manakah menunjukkan tuurutan yang betul tentang peringkat dalam penipisan

lapisan ozon.

I CFCs releases chlorine atoms Atom klorin membebaskan CFCs

II Chlorine atoms react with ozone molecules Atom klorin bertindak dengan molekul ozon

III CFCs breaks down with the presence of Ultraviolet radiationsCFCs diuraikan dengan kehadiran sinar ultraungu.

A III I II C II I III

B II III I D I II III



Essay question

1. (a) Diagram 9.1 shows one of the environmental phenomena which has become a current

topic of discussion.

R ajah 9.1 menunjukkan satu daripada fenomena alam sekitar yang menjadi isu

perbincangan masa kini.

Diagram 9.1R ajah 9.1

(i) Name this phenomenon and explain how its happens.If you are an environmental activist, suggest how would you explain to society about themeasures needed to overcome the phenomenon.

Namakan fenomena ini dan terangkan bagaimana fenomena ini berlaku.Jika anda adalah seorang aktivis alam sekitar, cadangkan bagaimana anda akanmenerangkan kepada orang ramai tentang langkah-langkah yang diperlukan untuk mengatasi fenomena ini.

[ 10 marks]



(b) A tropical forest areas developed into an industrial area as shown in Diagram 9.2.K awasan hutan tropika dibangunkan menjadi kawasan perindustrian seperti yang ditunjukkan pada R ajah 9.2.

(i) Discuss the good and the bad social, economic and environmental effects of thisdevelopment.Bincangkan kesan baik dan kesan buruk sosial, ekonomi dan persekitaran akibat

pembangunan ini.[10 marks]

chapter 9-question

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