Answer of all this questions???
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Explanation:
1. false(not all microorganisms can help in immunity)
2. false(it slows down the rate of spoiling of food)
3. true
4. true(the packets are filled with nitrogen gas which is nonreactive and protects the bacteria from having contact with air)
5. true
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Answer:
1 True . 2 True .3 False.4False .5True
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