BAB 3 : KELESTARIAN ALAM SEKITAR
Quiz
•
Science
•
5th Grade
•
Hard
RUSLINA Moe
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43 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah bahan pencemar utama yang terhasil semasa pembakaran bahan api dalam enjin kenderaan bermotor?
Ammonia
Karbon monoksida
Bahan radioaktif
Klorofluorokarbon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kumbahan yang tidak dirawat dan tumpahan minyak merupakan dua punca pencemaran air. Antara yang berikut yang manakah disebabkan oleh punca pencemaran tersebut?
Boleh menyebabkan sakit kepala
Memusnahkan habitat akuatik
Meningkatkan kandungan oksigen dalam air
mewujudkan keadaan yang sesuai bagi organisma akuatik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara gas berikut yang manakah menyebabkan pemanasan global?
Ammonia
Sulfur dioksida
Karbon dioksida
Nitrogen oksida
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara fenomena berikut yang manakah disebabkan oleh penggunaan baja kimia dan baja organik yang berlebihan dalam pertanian?
Eutrofikasi
Pencemaran terma
Penipisan lapisan ozon
Kesan rumah hijau
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hujan asid disebabkan oleh ?
Pembebasan gas nitrogen
Pembebasan gas oksigen
Pembebasan ammonia
Pembebasan gas sulfur dioksida dan nitrogen dioksida yang banyak
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimana BOD dapat digunakan sebagai penunjuk bagi pencemaran alam sekitar ?
Mengukur keseimbangan oksigen dan karbon dioksida di dalam air
Nilai BOD tinggi menunjukkan pencemaran air rendah
Nilai BOD tinggi menunjukkan kandungan oksigen terlarut tinggi
Mengukur masa yang diambil untuk melunturkan warna larutan metilena biru
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kesan ___________________ boleh diatasi dengan melarang pembakaran terbuka, kawal aktiviti pembalakan dan menanam lebih banyak tumbuhan hijau.
hujan asid
pencemaran tanah
rumah hijau
pencemaran air
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