allerySwiss cheese gets its large holes from which gas:
AHydrogen gas
BCarbon dioxide
COxygen gas
DNitrogen gas
Answer & Solution
Correct answer: B. Carbon dioxide
1. A particular bacterium ripens this cheese.
2. It gives off a large amount of one gas.
3. That gas is carbon dioxide.
_Source: syllabus Biology, Chapter 10, Microbes in Human Welfare._
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