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Subjects
Science State Board
Class 8
Microorganisms
Microorganisms - Friend and foe
8.
Answer the following
Exercise condition:
5
m.
1.
Choose the preservatives from the following:
lactic acid
sodium metabisulfite, sodium benzoate
water
2.
Fresh meat, fishes are covered with dry salt rocks, because salt is a
medicine
disinfectant
preservative
3.
The picture above shows a(n)
complex
enveloped
polyhedral
-shaped virus.
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