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SOLAF 2014 BIOLOGI SPM MODUL 8

JPN PERAK 1

1

Diagram 1 shows the source of water pollution and the effect of this pollution on the river in the form of graphs. Graphs I shows the changes in the population of bacteria in the river. Graph II shows the population of fish in the river. Rajah 1 menunjukkan sumber pencemaran air dan kesan pencemaran ini ke atas sungai dalam bentuk graf. Graf I menunjukkan perubahan populasi bakteria dalam sungai. Graf II menunjukkan populasi ikan dalam sungai.

Rajah 1

a

Name one type of pollutant discharged into the river. Namakan satu bahan pencemar yang dibuang ke dalam sungai

………………………………………………………………………………………………

[ 1 markah]


JPN PERAK 2

b (i)

Describe the population of fish along zone X, Y and Z. Huraikan keadaan populasi ikan di sepanjang zon X, Y, dan Z

Zone/Zon X:………………………………………………………………………………

Zone/Zon Y:………………………………………………………………………………

Zone/Zon Z:………………………………………………………………………………

[ 3 Markah] (ii)

Sketch a graph of the concentration of dissolved oxygen in the river. Lakarkan satu graf kepekatan oksigen yang terlarut dalam sungai.

[ 1 Markah] c

State one method to reduce river pollution. Nyatakan satu kaedah untuk mengurangkan pencemaran sungai.

……………………………………………………………………………………………… [ 1 Markah] d (i)

State one process that may occur after the death of aquatic plants. Nyatakan satu proses yang mungkin berlaku selepas kematian tumbuhan akuatik.

……………………………………………………………………………………………… [ 1 Markah] (ii)

Explain how this can happen. Terangkan bagaimana ini boleh berlaku

………………………………………………………………………………………………. ………………………………………………………………………………………………. ………………………………………………………………………………………………..


JPN PERAK 3

……………………………………………………………………………………………… [ 2 Markah] e Due to development, a chemical factory was built to replace the chicken and

vegetable farm. Disebabkan oleh perkembangan, sebuah kilang kimia dibina untuk menggantikan ladang ayam dan kebun sayur-sayuran.

(i)

What is the effect of this chemical factory on the river? Apakah kesan kilang kimia ini ke atas sungai?

………………………………………………………………………………………………. ………………………………………………………………………………………………. ………………………………………………………………………………………………..

[ 1 Markah] (ii)

What is the effects of this chemical factory on the concentration of dissolved oxygen and the population of fish Apakah kesan kilang kimia ini ke atas kepekatan oksigen yang terlarut dan populasi ikan.

.

………………………………………………………………………………………………. ………………………………………………………………………………………………. ……………………………………………………………………………………………….. ……………………………………………………………………………………………….

[ 2 Markah]

2 Diagram 2 shows a phenomenon in the atmosphere which take place in layer X. Rajah 2 menunjukkan satu fenomenon dalam atmosfera yang berlaku dalam lapisan X.


JPN PERAK 4

a (i)

Name the layer X. Namakan lapisan X.

……………………………………………………………………………………………… [ 1 Markah] (ii)

State the function of layer X. Nyatakan fungsi lapisan X.

……………………………………………………………………………………………… [ 1 Markah] b (i)

Name the phenomenon in Diagram 2. Namakan fenomenon di Rajah 2.

……………………………………………………………………………………………… [ 1 Markah] (ii)

What is the main substances that causes the phenomenon in b(i) to occur? Apakah bahan utama yang menyebabkan fenomenon di b(i) berlaku?

……………………………………………………………………………………………… [ 1 Markah]

(iii)

State two sources of the substance stated in b(ii). Nyatakan dua sumber bahan yang dinyatakan di b(ii).


JPN PERAK 5

……………………………………………………………………………………………… [ 1 Markah] c (i)

Give two negative impacts of the phenomenon in b(i). Berikan dua impak negatif bagi fenomenon di b(i).

………………………………………………………………………………………………. ………………………………………………………………………………………………. ……………………………………………………………………………………………….. ……………………………………………………………………………………………….

[ 2 Markah] (ii)

Suggest two ways to overcome the phenomenon in b(i). Cadangkan dua cara untuk mengatasi fenomenon di b(i).

………………………………………………………………………………………………. ………………………………………………………………………………………………. ……………………………………………………………………………………………….. ……………………………………………………………………………………………….

[ 2 Markah] d

Write three equations in sequence for the phenomenon in b(i) to happen. Tuliskan tiga persamaan dalam turutan untuk fenomenon di b(i) berlaku.

………………………………………………………………………………………………. ………………………………………………………………………………………………. ……………………………………………………………………………………………….. ……………………………………………………………………………………………….

[ 3 Markah]

3


JPN PERAK 6

The diagram above shows a picture of the reactions that takes place in the stratosphere layer of the Earth. Rajah di atas menunjukkan tindakbalas yang berlaku pada lapisan stratosfera Bumi.

a (i)

Based on the above diagram, name radiation X. Berdasarkan Rajah di atas, namakan sinaran X.

……………………………………………………………………………………………. [ 1 Markah] (ii)

State the characteristics of radiation X. Nyatakan satu sifat sinaran X.


JPN PERAK 7

……………………………………………………………………………………………. …………………………………………………………………………………………….

[ 1 Markah] b (i)

Name molecule Y. Namakan molekul Y.

……………………………………………………………………………………………. [ 1 Markah] (ii)

Name two substances that are a main source of the production of molecule Y. Namakan dua bahan yang boleh menyebabkan pembebasan molecule Y.

……………………………………………………………………………………………. …………………………………………………………………………………………….

[ 2 Markah] c (i)

Identify molecule Z. Camkan molekul Z.

……………………………………………………………………………………………. [ 1 Markah] (ii)

What is the function of molekul Z? Apakah fungsi molekul Z?

……………………………………………………………………………………………. [ 1 Markah] d (i)

What happens when the layer of molecule Z becomes thinner in the stratosphere? Apakah akan terjadi jika lapisan molekul Z semakin menipis di stratosfera?

……………………………………………………………………………………………. …………………………………………………………………………………………….

[ 1 Markah] (ii)

Give the names of two types of diseases caused by the effects in d (i). Namakan dua penyakit yang disebabkan oleh kesan yang dinyatakan di d (i).

…………………………………………………………………………………………….


JPN PERAK 8

[ 2 Markah] e

Suggest two ways to overcome the problem of the thinning of the molecule layer Z. Cadangkan dua cara untuk mengatasi masalah penipisan lapisan molekul Z.

……………………………………………………………………………………………. …………………………………………………………………………………………….

[ 2 Markah]

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