Q34 of 104 Page 39

Name two food materials which can be preserved by using oil or vinegar.

Fish and meat are often preserved by using oil or vinegar.


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32

Name some of the preservatives which are used in the preservation of fruits as jams arid jellies.

 33

Name some of the preservatives which are used in the preservation of fruits and vegetables as pickles.

 35

Name any two special chemicals which are used as food preservatives.

 36

Name the micro-organisms which can fix atmospheric nitrogen in the soil.