Question

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13. (a) Define food preservation.
(b) Write any two uses of fungi like yeast in food industries.
(a) खाद्य परिरक्षण की परिभाषा लिखिए।
(b) कवक, जैसे यीस्ट, के खाद्य उद्योग में कोई दो उपयोग लिखिए।
14. Classify the living organisms into different categories on the basis of the
cell number. Also write one characteristic feature of each category.
जीवधारियों को कोशिकाओं की संख्या के आधार पर वर्गीकृत करिए। हर एक वर्ग का
एक विशेष लक्षण भी लिखिए।
15. State two conditions under which the reproductive pattern of external
fertilization and external development succeeds.​

Answer 1

Answer:

is this a question it is so big.

Answer 2

Answer:

Explanation:

13 . (a). The process of treating and handling food so as to stop ,or greatly slow down , spoilage (loss of quality , edibility or nutritive value) caused , or accelerated , by microoragnisms , is called food preservation.

(b).(i). Fungi , like yeast, reproduce rapidly and produce carbon dioxide. This   gas when trapped in dough, or batter used for making dosas and idlies.

(ii). It also increase in the volume and makes it fluffy and soft.

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