sem 3

1. Bahagian A : Alam Sekitar Fizikal
( 20 markah )
Jawab semua soalan.
1. a. Apakah yang dimaksudkan dengan persaingan interspesies ? [3]
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b. Jelaskan bagaimana tumbuhan bersaing untuk kelangsungan hidup dalam ekosistem hutan
hujan tropika. [3]
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c. Huraikan dua kepentingan tumbuhan primer terhadap aktiviti manusia. [4]
i.__________________________________________________________________________
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ii._________________________________________________________________________
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2. INDEKS PENCEMARAN UDARA (IPU)
2. a) Berdasarkan jadual di atas, nyatakan dua punca yang menyebabkan berlakunya
peningkatan Indeks Pencemaran Udara. [2]
i. ________________________________________________________________________
ii. ________________________________________________________________________
b) “Peningkatan IndeksPencemaran Udara akan menyebabkan berlakunya kejadian
hujan asid”.
Jelaskan kesan fenomena kejadian hujan asid terhadap komponen berikut: [4]
i) Biosfera
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ii) Litosfera
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BACAAN KEADAAN UDARA
0 – 50 Baik
51 – 100 Sederhana
101 – 200 Tidak sihat
201 – 300 Sangat tidak sihat
Melebihi 301 Bahaya

3. c) Cadangkan dua langkah bagi mengatasi masalah hujan asid. [4]
i. ________________________________________________________________________
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ii. ________________________________________________________________________
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4. Bahagian B: Alam Sekitar Manusia
[20 markah]
Jawab semua soalan
3 a. Apakah yang dimaksudkan dengan sumber alam yang tidak boleh diperbaharui? [2]
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b. Jelaskan aktiviti perlombongan petroleum dan gas asli memberikan kesan negatif ke atas alam
sekitar fizikal. [4]
i. ________________________________________________________________________
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ii. ________________________________________________________________________
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5. c. Jelaskan dua langkah yang boleh diambil untuk mengurangkan kebergantungan kepada sumber
tenaga petroleum dan gas asli. [4]
i. ________________________________________________________________________
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ii. ________________________________________________________________________
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4. a. Takrifkan konsep pembangunan berterusan ( lestari ) [2]
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b Nyatakan empat daripada lapan prinsip pembangunan berterusan ( lestari ). [4]
i.__________________________________________________________________________
ii. _________________________________________________________________________
iii._________________________________________________________________________
iv._________________________________________________________________________

6. c Cadangkan dua langkah yang boleh diambil bagi mewujudkan bandar lestari. [4]
i.__________________________________________________________________________
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ii._________________________________________________________________________
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KERTAS SOALAN TAMAT
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