BIOTEKNOLOGI BAB 10

Quiz
•
Biology
•
12th Grade
•
Medium
eman eizman
Used 2+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1. Keperluan Oksigen Biokimia (BOD) ialah jumlah oksigen yang diperlukan oleh ............................................ untuk menguraikan bahan organik di dalam air.
ikan
tupai
mikroorganisma
lumut
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2. Tahap BOD yang tinggi menandakan bahawa kualiti sumber air adalah .........................................
biasa sahaja
rendah
tinggi
sederhana
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3. Pencemaran udara terjadi apabila terdapat peningkatan bahawa bahan .............................. seperti gas, asap, debu dan habuk di dalam atmosfera.
pelarut
pencernaan
pelaris
pencemar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Hujan asid yang terbentuk akan memusnahkan tisu daun dan mereputkan akar tumbuhan. Peningkatan keasidan air pula akan mengurangkan populasi ................................... .
ikan
planaria
burung helang
plankton
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
5. Apabila suhu air meningkat, kandungan oksigen teralrut dalam airberkurang dan menyukarkan kemandirian hidupan ......................................
akuatik
liar
di darat
di awan
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
6. Pendedahan kepada ............................ bising secara berterusan boleh menyebabkan masalah kesihatan seperi tekanan darah tinggi, penyakit kardiovaskular, kemurungan dan sakit kepala.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7. Ledakan pertumbuhan populasi ialah peningkatan jumlah manusia yang tinggal di kawasan tertentu, Pertumbuhan populasi bertambah dengan cepat yang membawa kepada penyahhutanan, kehilangan biodiversiti dan pemanasan ..........................
hutan
global
serumpun
persekitaran
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