Kuiz Biologi T4 Bab 9 : Ekosistem Terancam Siri 1
Quiz
•
Biology
•
11th - 12th Grade
•
Hard
Ilm Al-Ahya'
Used 161+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rajah tersebut menunjukkan sebuah tasik yang terletak berdekatan dengan tanah pertanian.
Apakah kesan populasi organisma Q yang banyak terhadap tasik?
peningkatan kandungan oksigen
keperluan oksigen biokimia (BOD) berkurang
menghalang kemasukan cahaya matahari ke dalam tasik
peningkatan bilangan haiwan akuatik
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Satu eksperimen dijalankan untuk menentukan nilai keperluan oksigen biokimia (BOD) di beberapa zon berlainan sebatang sungai.
Rajah itu menunjukkan graf kepekatan oksigen terlarut di zon A,B,C dan D.
Zon manakah yang paling tercemar?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah tersebut menunjukkan suatu aktiviti berdekatan dengan sungai.
Apakah kesan aktiviti tersebut terhadap ekosistem sungai?
Nilai (BOD) dalam air berkurang
populasi alga berkurang
suhu air sungai bertambah
bilangan aras trof bertambah
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Langkah-langkah berikut diambil untuk menyiasat tahap pencemaran air di sebatang sungai.
Antara urutan berikut,yang manakah menunjukkan prosedur untuk menyiasat aras pencemaran sungai di sungai itu?
R-P-S-Q
Q-P-R-S
P-Q-R-S
Q-R-S-P
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sungai P mempunyai nilai keperluan oksigen biokimia (BOD) yang tinggi. Antara pernyataan berikut,yang manakah benar tentang sungai P?
sungai ini tercemar
aktiviti bakteria aerob sangat rendah
kandungan oksigen terlarut sangat tinggi
sungai mengandungi banyak haiwan akuatik
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara bahan berikut,yang manakah menyebabkan eutrofikasi?
baja
insektisid
herbisid
karbon dioksida
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pembakaran bahan api fosil membebaskan sulfur dioksida. Bagaimanakah sulfur dioksida turun ke bumi sebagai hujan asid?
berpadu dengan karbon dioksida
berpadu dengan wap air
berpadu dengan asid cair
berpadu dengan oksigen
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