- BOD meningkat
- Pertumbuhan pesat alga
- Keamatan cahaya berkurang
Apakah fenomena ini?
BAB 10: Kelestarian Alam sekitar

Quiz
•
Biology
•
5th Grade
•
Medium
WIJAYANTI Moe
Used 98+ times
FREE Resource
20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Graf menunjukkan kepekatan oksigen terlarut pada lokasi berbeza di sepanjang sebatang sungai.
Pada lokasi A, B, C atau D yang mengandungi BOD yang paling tinggi?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Masa yang diambil oleh metilena biru dilunturkan ( Jam ) manakah yang menujukkan kadar pencemaran air yang tertinggi?
4 jam
3 jam
2 jam
1 jam
4.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Warna tong jingga mewakili bahan .......... dan ........... yang boleh dikitar semula.
plastik
kaca
kertas
logam
5.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Kesan buruk aktiviti di atas adalah..
Hakisan tanah
mengganggu kitar air, karbon dan nitrogen
kehilangan kawasan tadahan air
melombong mineral
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hujan lebat luar biasa sehingga menyebabkan banjir yang serius. Apakah fenomena ini?
El Nino
La Nina
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah gas rumah hijau yang terlibat disebabkan aktiviti penternakan?
Metana
Karbon dioksida
CFC
Nitrogen oksida
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