The following are useful effect of micro-organisms except
A.
production of vaccines
B.
curing of tobacco
C.
tanning of leather
D.
decay of meat
Correct Answer: Option D
Explanation
Decay in meat is not a useful effect of microorganisms. Microorganisms can cause meat to spoil, which can lead to food waste and food borne infections. Spoilage can cause meat to change color, produce off-flavors, and develop mucus and exudates.
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